Document:

Exhibit 4.5

 

GUARANTY

 

GUARANTY, dated as of
[_______ __, 2014] made by each of the undersigned (each a "Guarantor", and collectively, the "Guarantors"),
in favor of each "Buyer" (as defined below) party to the Notes referenced below.

 

W I T N E
S S E T H :

 

WHEREAS, pursuant to
the Merger Agreement, the Parent issued to the Buyers, as defined below, Amended and Restated Notes and New Notes in exchange for
the Amended and Restated Notes and New Notes of the Company’s subsidiary, Inventergy, Inc., which were originally issued
pursuant to a Securities Purchase Agreement, dated as of March [ ] , 2014 (as amended, restated, supplemented or otherwise modified
from time to time, the "SPA"), by and among Inventergy, Inc., a Delaware corporation (the "Company")
and the investors listed on the Schedule of Buyers attached thereto (together with their respective assignees and transferees,
each a "Buyer" and collectively, the "Buyers"), the Company issued notes (as amended, restated
or otherwise modified from time to time, the "Notes") to the Buyers;

 

WHEREAS, pursuant to
a Pledge and Security Agreement, dated as May 10, 2013 (as amended, restated, supplemented or otherwise modified from time to time,
the "Security Agreement"), the Company has granted to Hudson Bay IP Opportunities Master Fund LP (in such capacity,
the "Collateral Agent"), for the benefit of the Buyers, a security interest in and lien on its assets to secure
their respective obligations under the SPA, the Notes and the other Transaction Documents;

 

WHEREAS, pursuant to
an Agreement of Merger and Plan of Reorganization, dated as of December 17, 2013 as amended by Amendment No. 1 thereto dated March
20, 2014 (the "Merger Agreement"), by and among the Company, Parent Communications Corporation, a Delaware corporation
("Parent") and Inventergy Merger Sub, Inc., effective as of the Effective Time (as defined in the Merger Agreement),
the Company became a wholly-owned subsidiary of Parent;

 

WHEREAS, as a condition
to the Buyers' consent to the Company's execution of the Merger Agreement, the Buyers have requested, and the Company and the Guarantors
have agreed, that the Company and the other Guarantors shall execute and deliver to the Buyers (i) a guaranty guaranteeing all
of the obligations of the Parent under the SPA, the Notes and the other "Transaction Documents" (as defined in the SPA,
and as amended, restated or otherwise modified from time to time, the "Transaction Documents") as assumed by the
Parent at the Effective Time and (ii) a supplement to the Security Agreement, pursuant to which the Guarantors shall grant to the
Collateral Agent, for the benefit of the Buyers, a security interest in and lien on their assets to secure their respective obligations
under this Guaranty;

 

WHEREAS, each Guarantor
has determined that the execution, delivery and performance of this Guaranty directly benefits, and is in the best interest of,
such Guarantor;

 

    	 

    	 

    

 

NOW, THEREFORE, in consideration
of the premises and the agreements herein and for other consideration, the sufficiency of which is hereby acknowledged, each Guarantor
hereby agrees with the Buyers as follows:

 

SECTION 1. Definitions.
Reference is hereby made to the SPA and the Notes for a statement of the terms thereof. All terms used in this Guaranty, which
are defined in the SPA or the Notes and not otherwise defined herein, shall have the same meanings herein as set forth therein.

 

SECTION 2. Guaranty.
The Guarantors, jointly and severally, hereby unconditionally and irrevocably, guaranty (a) the punctual payment, as and when due
and payable, by stated maturity or otherwise, of all monetary obligations and any other amounts now or hereafter owing by the Parent
in respect of it in respect of the SPA, the Notes and the other Transaction Documents, including, without limitation, all interest
that accrues after the commencement of any proceeding commenced by or against the Company or any Guarantor under any provision
of the Bankruptcy Code (Chapter 11 of Title 11 of the United States Code) or under any other bankruptcy or insolvency law,
assignments for the benefit of creditors, formal or informal moratoria, compositions, or extensions generally with creditors, or
proceedings seeking reorganization, arrangement, or other similar relief (an "Insolvency Proceeding"), whether
or not the payment of such interest is unenforceable or is not allowable due to the existence of such Insolvency Proceeding, and
all fees, commissions, expense reimbursements, indemnifications and all other amounts due or to become due under any of the Transaction
Documents, and any and all expenses (including reasonable counsel fees and expenses) reasonably incurred by the Buyers in enforcing
any rights under this Guaranty (such obligations, to the extent not paid by the Parent, being the "Guaranteed Obligations")
and (b) the punctual and faithful performance, keeping, observance and fulfillment by the Parent of all of the agreements, conditions,
covenants and obligations of the Parent contained in the SPA, the Notes and the other Transaction Documents, to the extent each
Guarantor can legally perform such actions. Without limiting the generality of the foregoing, each Guarantor's liability hereunder
shall extend to all amounts that constitute part of the Guaranteed Obligations and would be owed by the Parent to the Buyers under
the SPA and the Notes but for the fact that they are unenforceable or not allowable due to the existence of an Insolvency Proceeding
involving any Guarantor or the Parent (each, a "Transaction Party").

 

SECTION 3. Guaranty
Absolute; Continuing Guaranty; Assignments.

 

(a) The Guarantors,
jointly and severally, guaranty that the Guaranteed Obligations will be paid strictly in accordance with the terms of the Transaction
Documents, regardless of any law, regulation or order now or hereafter in effect in any jurisdiction affecting any of such terms
or the rights of the Buyers with respect thereto. The obligations of each Guarantor under this Guaranty are independent of the
Guaranteed Obligations, and a separate action or actions may be brought and prosecuted against any Guarantor to enforce such obligations,
irrespective of whether any action is brought against any Transaction Party or whether any Transaction Party is joined in any such
action or actions. The liability of any Guarantor under this Guaranty shall be irrevocable, absolute and unconditional irrespective
of, and each Guarantor hereby irrevocably waives, to the extent permitted by law, any defenses it may now or hereafter have in
any way relating to, any or all of the following:

 

    	- 2 -

    	 

    

 

(i)any lack of
validity or enforceability of any Transaction Document or any agreement or instrument relating thereto;

 

(ii)any change
in the time, manner or place of payment of, or in any other term of, all or any of the Guaranteed Obligations, or any other amendment
or waiver of or any consent to departure from any Transaction Document, including, without limitation, any increase in the Guaranteed
Obligations resulting from the extension of additional credit to any Transaction Party or otherwise;

 

(iii)any taking,
exchange, release or non-perfection of any collateral with respect to the Guaranteed Obligations, or any taking, release or amendment
or waiver of or consent to departure from any other guaranty, for all or any of the Guaranteed Obligations; or

 

(iv)any change,
restructuring or termination of the corporate, limited liability company or partnership structure or existence of any Transaction
Party.

 

This Guaranty shall continue to be effective
or be reinstated, as the case may be, if at any time any payment of any of the Guaranteed Obligations is rescinded or must otherwise
be returned by the Buyers or any other Person upon the insolvency, bankruptcy or reorganization of any Transaction Party or otherwise,
all as though such payment had not been made.

 

(b) This Guaranty
is a continuing guaranty and shall (i) remain in full force and effect until the indefeasible payment in full in cash of all obligations
under the Notes (together with any matured indemnification obligations as of the date of such payment, but excluding any inchoate
or unmatured contingent indemnification obligations) and payment of all other amounts payable under this Guaranty (excluding any
inchoate or unmatured contingent indemnification obligations) and (ii) be binding upon each Guarantor and its respective successors
and assigns. This Guaranty shall inure to the benefit of and be enforceable by the Buyers and its respective successors, and permitted
pledgees, transferees and assigns. Without limiting the generality of the foregoing sentence, each Buyer may pledge, assign or
otherwise transfer all or any portion of its rights and obligations under and subject to the terms of any Transaction Document
to any other Person, and such other Person shall thereupon become vested with all the benefits in respect thereof granted to such
Buyer herein or otherwise, in each case as provided in the SPA or such other Transaction Document.

 

SECTION 4. Waivers.
To the extent permitted by applicable law, each Guarantor hereby waives promptness, diligence, notice of acceptance and any other
notice with respect to any of the Guaranteed Obligations and this Guaranty and any requirement that the Collateral Agent or the
Buyers exhaust any right or take any action against any Transaction Party or any other Person or any Collateral (as defined in
the Security Agreement). Each Guarantor acknowledges that it will receive direct and indirect benefits from the financing arrangements
contemplated herein and that the waiver set forth in this Section 4 is knowingly made in contemplation of such benefits.
The Guarantors hereby waive any right to revoke this Guaranty, and acknowledge that this Guaranty is continuing in nature and applies
to all Guaranteed Obligations, whether existing now or in the future.

 

    	- 3 -

    	 

    

 

SECTION 5. Subrogation.
No Guarantor may exercise any rights that it may now or hereafter acquire against any Transaction Party or any other guarantor
that arise from the existence, payment, performance or enforcement of any Guarantor's obligations under this Guaranty, including,
without limitation, any right of subrogation, reimbursement, exoneration, contribution or indemnification and any right to participate
in any claim or remedy of the Buyers against any Transaction Party or any other guarantor or any Collateral (as defined in the
Security Agreement), whether or not such claim, remedy or right arises in equity or under contract, statute or common law, including,
without limitation, the right to take or receive from any Transaction Party or any other guarantor, directly or indirectly, in
cash or other property or by set-off or in any other manner, payment or security solely on account of such claim, remedy or right,
unless and until the indefeasible payment in full in cash of all obligations under the Notes (together with any matured indemnification
obligations as of the date of such payment, but excluding any inchoate or unmatured contingent indemnification obligations) and
payment of all other amounts payable under this Guaranty (excluding any inchoate or unmatured contingent indemnification obligations).
If any amount shall be paid to a Guarantor in violation of the immediately preceding sentence at any time prior to the later of
the payment in full in cash of the Guaranteed Obligations and all other amounts payable under this Guaranty, such amount shall
be held in trust for the benefit of the Buyers and shall forthwith be paid to the Buyers to be credited and applied to the Guaranteed
Obligations and all other amounts payable under this Guaranty, whether matured or unmatured, in accordance with the terms of the
Transaction Documents, or to be held as collateral for any Guaranteed Obligations or other amounts payable under this Guaranty
thereafter arising. If (a) any Guarantor shall make payment to the Buyers of all or any part of the Guaranteed Obligations,
and (b) the Buyers receive the indefeasible payment in full in cash of all obligations under the Notes (together with any
matured indemnification obligations as of the date of such payment, but excluding any inchoate or unmatured contingent indemnification
obligations) and payment of all other amounts payable under this Guaranty (excluding any inchoate or unmatured contingent indemnification
obligations), the Buyers will, at such Guarantor's request and expense, execute and deliver to such Guarantor appropriate documents,
without recourse and without representation or warranty, necessary to evidence the transfer by subrogation to such Guarantor of
an interest in the Guaranteed Obligations resulting from such payment by such Guarantor.

 

SECTION 6. Representations,
Warranties and Covenants.

 

(a) Each Guarantor
hereby represents and warrants as of the date first written above as follows:

 

(i)Each Guarantor
(A) is a corporation, limited liability company or limited partnership duly organized, validly existing and in good standing under
the laws of the jurisdiction of its organization as set forth on the signature pages hereto, (B) has all requisite corporate, limited
liability company or limited partnership power and authority to conduct its business as now conducted and as presently contemplated
and to execute and deliver this Guaranty and each other Transaction Document to which the Guarantor is a party, and to consummate
the transactions contemplated hereby and thereby and (C) is duly qualified to do business and is in good standing in each jurisdiction
in which the character of the properties owned or leased by it or in which the transaction of its business makes such qualification
necessary except where the failure to be so qualified would not result in a Material Adverse Effect.

 

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(ii)The execution,
delivery and performance by each Guarantor of this Guaranty and each other Transaction Document to which such Guarantor is a party
(A) have been duly authorized by all necessary corporate, limited liability company or limited partnership action, (B) do not and
will not contravene its charter or by-laws, its limited liability company or operating agreement or its certificate of partnership
or partnership agreement, as applicable, or any applicable law or any contractual restriction binding on the Guarantor or its properties
do not and will not result in or require the creation of any lien (other than pursuant to any Transaction Document) upon or with
respect to any of its properties, and (C) do not and will not result in any default, noncompliance, suspension, revocation, impairment,
forfeiture or nonrenewal of any material permit, license, authorization or approval applicable to it or its operations or any of
its properties.

 

(iii)No authorization
or approval or other action by, and no notice to or filing with, any governmental authority is required in connection with the
due execution, delivery and performance by the Guarantor of this Guaranty or any of the other Transaction Documents to which the
Guarantor is a party (other than expressly provided for in any of the Transaction Documents).

 

(iv)Each of this
Guaranty and the other Transaction Documents to which the Guarantor is or will be a party, when delivered, will be, a legal, valid
and binding obligation of the Guarantor, enforceable against the Guarantor in accordance with its terms, except as may be limited
by applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent conveyance, suretyship or other similar laws and equitable
principles (regardless of whether enforcement is sought in equity or at law).

 

(v)There is no
pending or, to the best knowledge of the Guarantor, threatened action, suit or proceeding against the Guarantor or to which any
of the properties of the Guarantor is subject, before any court or other governmental authority or any arbitrator that (A) if
adversely determined, could reasonably be expected to have a Material Adverse Effect, other than as disclosed in a Schedule to
the Merger Agreement, or (B) relates to this Guaranty or any of the other Transaction Documents to which the Guarantor is
a party or any transaction contemplated hereby or thereby.

 

(vi)The Guarantor
(A) has read and understands the terms and conditions of the SPA, the Notes and the other Transaction Documents, and (B) now
has and will continue to have independent means of obtaining information concerning the affairs, financial condition and business
of the Parent and the other Transaction Parties, and has no need of, or right to obtain from the Buyers, any credit or other information
concerning the affairs, financial condition or business of the Parent or the other Transaction Parties that may come under the
control of the Buyers.

 

(b) The Guarantor
covenants and agrees that until the indefeasible payment in full in cash of all obligations under the Notes (together with any
matured indemnification obligations as of the date of such payment, but excluding any inchoate or unmatured contingent indemnification
obligations) and payment of all other amounts payable under this Guaranty (excluding any inchoate or unmatured contingent indemnification
obligations), it will comply with each of the covenants which are set forth in subsections (j) and (l) of Section 4 of the
SPA as if the Guarantor were a party thereto.

 

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SECTION 7. Right of
Set-off. Upon the occurrence and during the continuance of any Event of Default, the Buyers may, and are hereby authorized
to, at any time and from time to time, without notice to the Guarantors (any such notice being expressly waived by each Guarantor)
and to the fullest extent permitted by law, set-off and apply any and all deposits (general or special, time or demand, provisional
or final) at any time held and other indebtedness at any time owing by the Buyers to or for the credit or the account of any Guarantor
against any and all obligations of the Guarantors now or hereafter existing under this Guaranty or any other Transaction Document,
irrespective of whether or not the Buyers shall have made any demand under this Guaranty or any other Transaction Document and
although such obligations may be contingent or unmatured. The rights of the Buyers under this Section 7 are in addition
to other rights and remedies (including, without limitation, other rights of set-off) which the Buyers may have under this Guaranty
or any other Transaction Document in law or otherwise.

 

SECTION 8. Notices,
Etc. All notices and other communications provided for hereunder shall be in writing and shall be mailed (by overnight mail
or by certified mail, postage prepaid and return receipt requested), telecopied or delivered, if to any Guarantor, to the address
for such Guarantor set forth on the signature page hereto, or if to the Buyers, to it at its respective address set forth in the
SPA; or as to any Person at such other address as shall be designated by such Person in a written notice to such other Person complying
as to delivery with the terms of this Section 8. All such notices and other communications shall be effective (i) if
mailed (by certified mail, postage prepaid and return receipt requested), when received or three Business Days after deposited
in the mails, whichever occurs first; (ii) if telecopied, when transmitted and confirmation is received, provided same is on a
Business Day and, if not, on the next Business Day; or (iii) if delivered by hand, upon delivery, provided same is on a Business
Day and, if not, on the next Business Day.

 

SECTION 9. CONSENT
TO JURISDICTION; SERVICE OF PROCESS AND VENUE. ANY LEGAL ACTION OR PROCEEDING WITH RESPECT TO THIS GUARANTY OR ANY OTHER TRANSACTION
DOCUMENT MAY BE BROUGHT IN THE COURTS OF THE STATE OF NEW YORK IN THE COUNTY OF NEW YORK OR OF THE UNITED STATES DISTRICT COURT
FOR THE SOUTHERN DISTRICT OF NEW YORK, AND, BY EXECUTION AND DELIVERY OF THIS AGREEMENT, EACH GUARANTOR HEREBY IRREVOCABLY ACCEPTS
IN RESPECT OF ITS PROPERTY, GENERALLY AND UNCONDITIONALLY, THE JURISDICTION OF THE AFORESAID COURTS. NOTHING HEREIN SHALL AFFECT
THE RIGHT OF THE BUYERS TO SERVICE OF PROCESS IN ANY OTHER MANNER PERMITTED BY LAW OR TO COMMENCE LEGAL PROCEEDINGS OR OTHERWISE
PROCEED AGAINST EACH GUARANTOR IN ANY OTHER JURISDICTION. EACH GUARANTOR HEREBY EXPRESSLY AND IRREVOCABLY WAIVES, TO THE FULLEST
EXTENT PERMITTED BY LAW, ANY OBJECTION WHICH IT MAY NOW OR HEREAFTER HAVE TO THE JURISDICTION OR LAYING OF VENUE OF ANY SUCH LITIGATION
BROUGHT IN ANY SUCH COURT REFERRED TO ABOVE AND ANY CLAIM THAT ANY SUCH LITIGATION HAS BEEN BROUGHT IN AN INCONVENIENT FORUM. TO
THE EXTENT THAT ANY GUARANTOR HAS OR HEREAFTER MAY ACQUIRE ANY IMMUNITY FROM JURISDICTION OF ANY COURT OR FROM ANY LEGAL PROCESS
(WHETHER THROUGH SERVICE OR NOTICE, ATTACHMENT PRIOR TO JUDGMENT, ATTACHMENT IN AID OF EXECUTION OR OTHERWISE) WITH RESPECT TO
ITSELF OR ITS PROPERTY, EACH GUARANTOR HEREBY IRREVOCABLY WAIVES SUCH IMMUNITY IN RESPECT OF ITS OBLIGATIONS UNDER THIS GUARANTY
AND THE OTHER TRANSACTION DOCUMENTS.

 

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SECTION 10. WAIVER
OF JURY TRIAL, ETC. EACH GUARANTOR HEREBY WAIVES ANY RIGHT TO A TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM CONCERNING
ANY RIGHTS UNDER THIS GUARANTY OR THE OTHER TRANSACTION DOCUMENTS, OR UNDER ANY AMENDMENT, WAIVER, CONSENT, INSTRUMENT, DOCUMENT
OR OTHER AGREEMENT DELIVERED OR WHICH IN THE FUTURE MAY BE DELIVERED IN CONNECTION HEREWITH OR THEREWITH, OR ARISING FROM ANY FINANCING
RELATIONSHIP EXISTING IN CONNECTION WITH THIS GUARANTY OR THE OTHER TRANSACTION DOCUMENTS, AND AGREES THAT ANY SUCH ACTION, PROCEEDING
OR COUNTERCLAIM SHALL BE TRIED BEFORE A COURT AND NOT BEFORE A JURY. EACH GUARANTOR CERTIFIES THAT NO OFFICER, REPRESENTATIVE,
AGENT OR ATTORNEY OF THE BUYERS HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT THE BUYERS WOULD NOT, IN THE EVENT OF ANY ACTION,
PROCEEDING OR COUNTERCLAIM, SEEK TO ENFORCE THE FOREGOING WAIVERS. EACH GUARANTOR HEREBY ACKNOWLEDGES THAT THIS PROVISION IS A
MATERIAL INDUCEMENT FOR THE BUYERS ENTERING INTO THE OTHER TRANSACTION DOCUMENTS.

 

SECTION 11. Taxes.

 

(a) All payments
made by any Guarantor hereunder or under any other Transaction Document shall be made in accordance with the terms of the respective
Transaction Document and shall be made without set-off, counterclaim, deduction or other defense. All such payments shall be made
free and clear of and without deduction for any present or future taxes, levies, imposts, deductions, charges or withholdings,
and all liabilities with respect thereto, excluding taxes imposed on the net income of any Buyer by any jurisdiction claiming
the right to tax such net income (all such nonexcluded taxes, levies, imposts, deductions, charges, withholdings and liabilities,
collectively or individually, "Taxes"). If any Guarantor shall be required to deduct or to withhold any Taxes
from or in respect of any amount payable hereunder or under any other Transaction Document:

 

(i)such Guarantor
shall make such deduction or withholding,

 

(ii)such Guarantor
shall pay the full amount deducted or withheld to the relevant taxation authority in accordance with applicable law, and

 

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(iii)as promptly
as possible thereafter, such Guarantor shall send the applicable Buyer an official receipt (or, if an official receipt is not available,
such other documentation as shall be satisfactory to the Buyers) showing payment.  In addition, each Guarantor agrees to pay
any present or future stamp or documentary taxes or any other excise or property taxes, charges or similar levies that arise from
any payment made hereunder or from the execution, delivery, registration or enforcement of, or otherwise with respect to, this
Agreement or any other Transaction Document (collectively, "Other Taxes").

 

(b) Each Guarantor
hereby indemnifies and agrees to hold each Buyer harmless from and against Taxes or Other Taxes (including, without limitation,
any Taxes or Other Taxes imposed by any jurisdiction on amounts payable under this Section 11) paid by the such Buyer
as a result of any payment made hereunder or from the execution, delivery, registration or enforcement of, or otherwise with respect
to, this Agreement or any other Transaction Document, and any liability (including penalties, interest and expenses for nonpayment,
late payment or otherwise) arising therefrom or with respect thereto, whether or not such Taxes or Other Taxes were correctly or
legally asserted.  This indemnification shall be paid within 30 days from the date on which a Buyer makes written demand therefor,
which demand shall identify the nature and amount of such Taxes or Other Taxes.

 

(c) If any Guarantor
fails to perform any of its obligations under this Section 11, such Guarantor shall indemnify the Buyers for any taxes,
interest or penalties that may become payable as a result of any such failure. The obligations of the Guarantors under this Section 11
shall survive the termination of this Guaranty and the payment of the Obligations and all other amounts payable hereunder.

 

SECTION 12. Miscellaneous.

 

(a) Each Guarantor
will make each payment hereunder in lawful money of the United States of America and in immediately available funds to Buyers,
at such address specified by each Buyer from time to time by notice to the Guarantors.

 

(b) No amendment
or waiver of any provision of this Guaranty and no consent to any departure by any Guarantor therefrom shall in any event be effective
unless the same shall be in writing and signed by each Guarantor and the Buyers holding a majority of the outstanding principal
amount of the Notes, and then such waiver or consent shall be effective only in the specific instance and for the specific purpose
for which given.

 

(c) No failure on
the part of the Collateral Agent and/or the Buyers to exercise, and no delay in exercising, any right hereunder or under any other
Transaction Document shall operate as a waiver thereof, nor shall any single or partial exercise of any right hereunder or under
any Transaction Document preclude any other or further exercise thereof or the exercise of any other right. The rights and remedies
of the Buyers provided herein and in the other Transaction Documents are cumulative and are in addition to, and not exclusive of,
any rights or remedies provided by law. The rights of each Buyer under any Transaction Document against any party thereto are not
conditional or contingent on any attempt by such Buyer to exercise any of its rights under any other Transaction Document against
such party or against any other Person.

 

    	- 8 -

    	 

    

 

(d) Any provision
of this Guaranty that is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the
extent of such prohibition or unenforceability without invalidating the remaining portions hereof or affecting the validity or
enforceability of such provision in any other jurisdiction.

 

(e) This Guaranty
shall (i) be binding on each Guarantor and its respective successors and assigns, and (ii) inure, together with all rights and
remedies of the Buyers hereunder, to the benefit of the Buyers and their respective successors, transferees and assigns. Without
limiting the generality of clause (ii) of the immediately preceding sentence, each Buyer may assign or otherwise transfer its rights
and obligations under the SPA, the Notes or any other Transaction Document to any other Person in accordance with the terms thereof,
and such other Person shall thereupon become vested with all of the benefits in respect thereof granted to the such Buyer herein
or otherwise. None of the rights or obligations of any Guarantor hereunder may be assigned or otherwise transferred without the
prior written consent of each Buyer.

 

(f) This Guaranty
reflects the entire understanding of the transaction contemplated hereby and shall not be contradicted or qualified by any other
agreement, oral or written, entered into before the date hereof.

 

(g) Section headings
herein are included for convenience of reference only and shall not constitute a part of this Agreement for any other purpose.

 

(h) This
Guaranty shall be governed by and construed in accordance with the law of the State of New York applicable to contracts made and
to be performed therein without regard to conflict of law principles.

 

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IN WITNESS WHEREOF, each
Guarantor has caused this Guaranty to be executed by its respective duly authorized officer, as of the date first above written.

 

 

	 	INVENTERGY, INC., a Delaware corporation
	 	 
	 	 
	 	 
	 	By:	 	 
	 	 	Name:	 
	 	 	Title:	 
	  	 	 	 
	 	Address for Notices:	 
	 	 	 	 
	 	 	 	 
	 	 	 	 
	 	Facsimile:	 
	 	 	 	 
	 	 	 	 
	 	EON COMMUNICATIONS SYSTEMS, INC.,

 a Delaware corporation
	 	 
	 	 
	 	 
	 	By:	 	 
	 	 	Name:	 
	 	 	Title: 	 
	 	 	 	 
	 	Address for Notices:
	 	 	 	 
	 	 	 	 
	 	 	 	 
	 	Facsimile:Exhibit 10.4

 

VOTING AGREEMENT

 

VOTING AGREEMENT, dated
as of December 17, 2013 (this "Agreement"), by and among eOn Communications Corporation, a Delaware corporation
(the "Company"), and David S. Lee (the "Stockholder").

 

WHEREAS, the Company
and certain investors (each, an "Investor", and collectively, the "Investors") have entered into
a Securities Purchase Agreement, dated as December 17, 2013 (the "Securities Purchase Agreement"), pursuant to
which, among other things, the Company has agreed to issue and sell to the Investors and the Investors have agreed to purchase
(i) shares of Series B Convertible Preferred Stock of the Company, par value $0.001 per share (the "Preferred Shares"),
which are convertible into shares of the common stock of the Company, par value $0.005 per share (the "Common Stock")
and (ii) warrants (the "Warrants"), which are exercisable to purchase shares of Common Stock.

 

WHEREAS, as of the date
hereof, the Stockholder owns 723,545 shares of Common Stock and options to purchase 28,333 shares of Common Stock; and

 

WHEREAS, as a condition
to the willingness of the Investors to enter into the Securities Purchase Agreement and to consummate the transactions contemplated
thereby (collectively, the "Transaction"), the Investors have required that the Stockholder agree, and in order
to induce the Investors to enter into the Securities Purchase Agreement, the Stockholder has agreed, to enter into this Agreement
with respect to all the Common Stock now owned and which may hereafter be acquired by the Stockholder and any other securities,
if any, which the Stockholder is currently entitled to vote, or after the date hererof, becomes entitled to vote, at any meeting
of stockholders of the Company (the "Other Securities").

 

NOW, THEREFORE, in consideration
of the foregoing and the mutual covenants and agreements contained herein, and intending to be legally bound hereby, the parties
hereto hereby agree as follows:

 

Article
I

VOTING AGREEMENT OF THE STOCKHOLDER

 

SECTION 1.01.     Voting
Agreement. Subject to the last sentence of this Section 1.01, the Stockholder hereby agrees that at any meeting of the stockholders
of the Company, however called, and in any action by written consent of the Company's stockholders, the Stockholder shall vote
the Common Stock and the Other Securities owned by the Stockholder: (a) in favor of the Stockholder Approval (as defined in the
Securities Purchase Agreement) as described in Section 4(s) of the Securities Purchase Agreement; and (b) against any proposal
or any other corporate action or agreement that would result in a breach of any covenant, representation or warranty or any other
obligation or agreement of the Company under the Securities Purchase Agreement or which could result in any of the conditions to
the Company's obligations under the Securities Purchase Agreement not being fulfilled. The Stockholder acknowledges receipt and
review of a copy of the Securities Purchase Agreement and the other Transaction Documents (as defined in the Securities Purchase
Agreement). The obligations of the Stockholder under this Section 1.01 shall terminate immediately following the occurrence of
the Stockholder Approval.

 

    	 

    	 

    

 

Article
II

REPRESENTATIONS AND WARRANTIES OF THE STOCKHOLDER

 

The Stockholder hereby
represents and warrants, severally but not jointly, to each of the Investors as follows:

 

SECTION 2.01.     Authority
Relative to This Agreement. The Stockholder has all necessary legal capacity, power and authority to execute and deliver this
Agreement, to perform his obligations hereunder and to consummate the transactions contemplated hereby. This Agreement has been
duly executed and delivered by the Stockholder and constitutes a legal, valid and binding obligation of the Stockholder, enforceable
against the Stockholder in accordance with its terms, except (a) as such enforceability may be limited by applicable bankruptcy,
insolvency, reorganization, fraudulent conveyance, moratorium or similar laws now or hereafter in effect relating to, or affecting
generally the enforcement of creditors' and other obligees' rights, (b) where the remedy of specific performance or other forms
of equitable relief may be subject to certain equitable defenses and principles and to the discretion of the court before which
the proceeding may be brought, and (c) where rights to indemnity and contribution thereunder may be limited by applicable law and
public policy.

 

SECTION 2.02.     No
Conflict. (a) The execution and delivery of this Agreement by the Stockholder does not, and the performance of this Agreement
by the Stockholder shall not, (i) conflict with or violate any federal, state or local law, statute, ordinance, rule, regulation,
order, judgment or decree applicable to the Stockholder or by which the Common Stock or the Other Securities owned by the Stockholder
are bound or affected or (ii) result in any breach of or constitute a default (or an event that with notice or lapse of time or
both would become a default) under, or give to others any rights of termination, amendment, acceleration or cancellation of, or
result in the creation of a lien or encumbrance on any of the Common Stock or the Other Securities owned by the Stockholder pursuant
to, any note, bond, mortgage, indenture, contract, agreement, lease, license, permit, franchise or other instrument or obligation
to which the Stockholder is a party or by which the Stockholder or the Common Stock or Other Securities owned by the Stockholder
are bound.

 

(b)          The execution
and delivery of this Agreement by the Stockholder does not, and the performance of this Agreement by the Stockholder shall not,
require any consent, approval, authorization or permit of, or filing with or notification to, any governmental entity by the Stockholder.

 

SECTION 2.03.     Title
to the Stock. As of the date hereof, the Stockholder is the owner of the number of shares of Common Stock set forth opposite
its name on Appendix A attached hereto, entitled to vote, without restriction, on all matters brought before holders of
capital stock of the Company, which Common Stock represent on the date hereof the percentage of the outstanding stock and voting
power of the Company set forth on such Appendix. Such Common Stock are all the securities of the Company owned, either of record
or beneficially, by the Stockholder. Such Common Stock are owned free and clear of all security interests, liens, claims, pledges,
options, rights of first refusal, agreements, limitations on the Stockholder's voting rights, charges and other encumbrances of
any nature whatsoever. The Stockholder has not appointed or granted any proxy, which appointment or grant is still effective, with
respect to the Common Stock or Other Securities owned by the Stockholder.

 

    	2

    	 

    

 

Article
III

COVENANTS

 

SECTION 3.01.     No
Disposition or Encumbrance of Stock. The Stockholder hereby covenants and agrees that, until the Stockholder Approval has been
obtained, except as contemplated by this Agreement, the Stockholder shall not offer or agree to sell, transfer, tender, assign,
hypothecate or otherwise dispose of, grant a proxy or power of attorney with respect to, or create or permit to exist any security
interest, lien, claim, pledge, option, right of first refusal, agreement, limitation on the Stockholder's voting rights, charge
or other encumbrance of any nature whatsoever ("Encumbrance") with respect to the Common Stock or Other Securities,
directly or indirectly, initiate, solicit or encourage any person to take actions which could reasonably be expected to lead to
the occurrence of any of the foregoing; provided, however, that the Stockholder may assign, sell or transfer any
Common Stock or Other Securities provided that any such recipient of the Common Stock or Other Securities has delivered to the
Company and each Investor a written agreement in a form reasonably satisfactory to the Investors that the recipient shall be bound
by, and the Common Stock and/or Other Securities so transferred, assigned or sold shall remain subject to this Agreement.

 

SECTION 3.02.     Company
Cooperation. The Company hereby covenants and agrees that it will not, and the Stockholder irrevocably and unconditionally
acknowledges and agrees that the Company will not (and waives any rights against the Company in relation thereto), recognize any
Encumbrance or agreement on any of the Common Stock or Other Securities subject to this Agreement unless the provisions of Section
3.01 have been complied with. The Company agrees to use its reasonable best efforts to ensure that at any time in which any Stockholder
Approval is required pursuant to Section 4(s) of the Securities Purchase Agreement, it will cause holders of Common Stock or Other
Securities representing the percentage of outstanding capital stock required to vote in favor of the Transaction in order for the
Company to comply with its obligations under Section 4(s) of the Securities Purchase Agreement to become party to and bound by
the terms and conditions of this Agreement and the Common Stock and Other Securities held by such holders to be subject to the
terms and conditions of this Agreement.

 

Article
IV

MISCELLANEOUS

 

SECTION 4.01.     Further
Assurances. The Stockholder will execute and deliver such further documents and instruments and take all further action as
may be reasonably necessary in order to consummate the transactions contemplated hereby.

 

    	3

    	 

    

 

SECTION 4.02.     Specific
Performance. The parties hereto agree that irreparable damage would occur in the event any provision of this Agreement was
not performed in accordance with the terms hereof and that any Investor (without being joined by any other Investor) shall be entitled
to specific performance of the terms hereof, in addition to any other remedy at law or in equity. Any Investor shall be entitled
to its reasonable attorneys' fees in any action brought to enforce this Agreement in which it is the prevailing party.

 

SECTION 4.03.     Entire
Agreement. This Agreement constitutes the entire agreement among the Company and the Stockholder with respect to the subject
matter hereof and supersedes all prior agreements and understandings, both written and oral, between the Company and the Stockholder
with respect to the subject matter hereof.

 

SECTION 4.04.     Amendment.
The provisions of this Agreement may not be amended or waived, nor may this Agreement be terminated by the Company other than pursuant
to the provisions of Section 4.07.

 

SECTION 4.05.     Severability.
If any provision of this Agreement is prohibited by law or otherwise determined to be invalid or unenforceable by a court of competent
jurisdiction, the provision that would otherwise be prohibited, invalid or unenforceable shall be deemed amended to apply to the
broadest extent that it would be valid and enforceable, and the invalidity or unenforceability of such provision shall not affect
the validity of the remaining provisions of this Agreement so long as this Agreement as so modified continues to express, without
material change, the original intentions of the parties as to the subject matter hereof and the prohibited nature, invalidity or
unenforceability of the provision(s) in question does not substantially impair the respective expectations or reciprocal obligations
of the parties or the practical realization of the benefits that would otherwise be conferred upon the parties. The parties will
endeavor in good faith negotiations to replace the prohibited, invalid or unenforceable provision(s) with a valid provision(s),
the effect of which comes as close as possible to that of the prohibited, invalid or unenforceable provision(s).

 

SECTION 4.06.     Governing
Law. All questions concerning the construction, validity, enforcement and interpretation of this Agreement shall be governed
by the internal laws of the State of New York, without giving effect to any choice of law or conflict of law provision or rule
(whether of the State of New York or any other jurisdictions) that would cause the application of the laws of any jurisdictions
other than the State of New York. The parties hereby agree that all actions or proceedings arising directly or indirectly from
or in connection with this Agreement shall be litigated only in the Supreme Court of the State of New York or the United States
District Court for the Southern District of New York located in New York County, New York. The parties consent to the jurisdiction
and venue of the foregoing courts and consent that any process or notice of motion or other application to any of said courts or
a judge thereof may be served inside or outside the State of New York or the Southern District of New York by registered mail,
return receipt requested, directed to the party being served at its address set forth on the signature ages to this Agreement (and
service so made shall be deemed complete three (3) days after the same has been posted as aforesaid) or by personal service
or in such other manner as may be permissible under the rules of said courts. Each of the Company and the Stockholder irrevocably
waives, to the fullest extent permitted by law, any objection which it may now or hereafter have to the laying of the venue of
any such suit, action, or proceeding brought in such a court and any claim that suit, action, or proceeding has been brought in
an inconvenient forum. EACH PARTY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR
THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION WITH OR ARISING OUT OF THIS AGREEMENT OR ANY TRANSACTION CONTEMPLATED
HEREBY.

 

    	4

    	 

    

 

SECTION 4.07.     Termination.
This Agreement shall terminate immediately following the occurrence of the Stockholder Approval.

 

[Signature Page Follows]

 

    	5

    	 

    

 

IN WITNESS
WHEREOF, the Stockholder and the Company has duly executed this Agreement.

 

	 	 	THE COMPANY:
	 	 	 
	 	 	EON COMMUNICATIONS CORPORATION
	 	 	 
	 	 	By:	/s/ Stephen Swartz
	 	 	 	Name:  Stephen Swartz
	 	 	 	Title:  Principal Executive Officer
	Dated: December 17, 2013	 	 	 

	 	 	Address:	eOn Communications Corporation
	 	 	 	1703 Sawyer Road
	 	 	 	Corinth, MS 38834

 

Signature
Page to Voting Agreement

 

    	 

    	 

    

 

	 	 	STOCKHOLDER:
	 	 	 
	 	 	/s/ David S. Lee
	 	 	David S. Lee
	 	 	 
	Dated:  December 17, 2013	 	 
	 	 	Address:	 

 

Signature Page to Voting Agreement

 

    	 

    	 

    

 

APPENDIX A

	
         

        Stockholder
	Common Stock 

Owned1	Percentage of Stock

Outstanding2	Voting Percentage 

of Stock

Outstanding2
	David S. Lee	723,545	23.9%	23.9%

 

(1) David S. Lee also holds options to purchase 28,333
shares of Common Stock, which are not included above, because the Stockholder cannot vote the shares of Common Stock issuable upon
exercise of such options, unless the Stockholder exercises such options. Once exercised, the shares issued upon exercise of such
options will be bound by the terms of this Voting Agreement as "Other Securities".

(2) The percentage of outstanding shares of Common
Stock beneficially owned by Mr. Lee is calculated based on the 3,030,697 outstanding shares of Common Stock as of December 10,
2013 and does not include the unexercised options.

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