Document:

Voice Mobility International, Inc.: Exhibit 10.2 - Filed by newsfilecorp.com

THE SECURITIES REPRESENTED HEREBY HAVE BEEN OFFERED IN AN
OFFSHORE TRANSACTION TO A PERSON WHO IS NOT A U.S. PERSON (AS DEFINED HEREIN)
PURSUANT TO REGULATION S UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS
AMENDED (THE "1933 ACT"). 

NONE OF THE SECURITIES REPRESENTED HEREBY HAVE BEEN
REGISTERED UNDER THE 1933 ACT, OR ANY U.S. STATE SECURITIES LAWS, AND, UNLESS SO
REGISTERED, MAY NOT BE OFFERED OR SOLD, DIRECTLY OR INDIRECTLY, IN THE UNITED
STATES (AS DEFINED HEREIN) OR TO U.S. PERSONS EXCEPT IN ACCORDANCE WITH THE
PROVISIONS OF REGULATION S UNDER THE 1933 ACT, PURSUANT TO AN EFFECTIVE
REGISTRATION STATEMENT UNDER THE 1933 ACT, OR PURSUANT TO AN AVAILABLE EXEMPTION
FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE
1933 ACT AND IN EACH CASE ONLY IN ACCORDANCE WITH APPLICABLE STATE SECURITIES
LAWS. IN ADDITION, HEDGING TRANSACTIONS INVOLVING THE SECURITIES MAY NOT BE
CONDUCTED UNLESS IN COMPLIANCE WITH THE 1933 ACT. "UNITED STATES" AND "U.S.
PERSON" ARE AS DEFINED BY REGULATION S UNDER THE 1933 ACT. 

UNLESS PERMITTED UNDER SECURITIES LEGISLATION, THE HOLDER OF
THIS SECURITY MUST NOT TRADE THE SECURITY BEFORE JULY 4, 2011.

WITHOUT THE PRIOR WRITTEN APPROVAL OF THE TSX VENTURE
EXCHANGE (THE "EXCHANGE") AND COMPLIANCE WITH ALL APPLICABLE SECURITIES
LEGISLATION, THE SECURITIES REPRESENTED BY THIS CERTIFICATE MAY NOT BE SOLD,
TRANSFERRED, HYPOTHECATED OR OTHERWISE TRADED ON OR THROUGH THE FACILITIES OF
THE EXCHANGE OR OTHERWISE IN CANADA OR TO OR FOR THE BENEFIT OF A CANADIAN
RESIDENT UNTIL JULY 4, 2011.

	  	Principal Amount 
	No. 2011-J01 	(CDN) $580,000 

DEBENTURE CERTIFICATE

VOICE MOBILITY INTERNATIONAL, INC.

SECURED DEBENTURE

For value received, VOICE MOBILITY INTERNATIONAL, INC. (the
"Borrower") hereby acknowledges itself indebted and hereby promises to
pay to:

<>

(the "registered holder")

the outstanding principal amount of this Debenture and all
accrued and unpaid interest thereon (the "Debt"), on July 1, 2011 (the
"Repayment Date").

The Debenture shall be dated as of the date of original issue
(the "Closing Date"). Unless otherwise stated, all dollar figures herein
are expressed, and all payments due and owing hereunder shall be made, in
Canadian Dollars.

Repayment of Principal

The Debt shall be repayable by the Borrower to the registered
holder on the Repayment Date, provided that the Repayment Date shall accelerate
and the Debt shall thereafter be repayable within 5 business days of the
Borrower completing a financing or a series of financings in an amount of not
less than CDN $700,000 (the "Accelerated Repayment Date").

Subject to any agreement otherwise between the Borrower and the
registered holder, on the Repayment Date, or the Accelerated Repayment Date as
circumstances dictate, the registered holder shall present and surrender the
Debenture to the Borrower, and the Borrower shall forthwith pay to the
registered holder the Debt in its entirety.

- 2 -

Interest

Interest shall accrue on the outstanding principal amount of
this Debenture from time to time at a rate of 12% per annum on the outstanding
principal amount of the Debt compounded monthly and payable upon the Repayment
Date, or the Accelerated Repayment Date as circumstances dictate. From the date
of the occurrence of an Event of Default, as defined herein, until the date on
which the Debt has been repaid in full, interest shall accrue at a rate of 20%
per annum on the outstanding principal amount of the Debt compounded monthly.

Transferability

Subject to applicable securities laws, the Debenture and any
part thereof may be transferred or sold by the Purchaser to a third party upon
the Purchaser providing the Borrower with 10 days written notice to the
Borrower.

Payment Procedure

All sums due and owing hereunder by the Borrower shall be made
by delivering a cheque made payable to the account of the registered holder and
sent by pre-paid ordinary mail to the last address of the registered holder
appearing on the register of Debentures. If any payment is to be made on a day
that is not a business day in the Province of British Columbia, such payment or
delivery shall be made by the Borrower on the following business day.

The mailing of such cheque shall be deemed to satisfy and
discharge in full the Borrower's liability for payment to the extent of the sum
represented by said cheque unless said cheque is not paid at par on
presentation, as of the date of mailing. In the event that a cheque is lost and
another cheque is issued in replacement thereof, the payment of any sum
represented by said cheque shall be deemed to have been made, satisfied and
discharged in full on the original date of mailing, including but not limited
for the purpose of any penalty thereon.

Prepayment

The Borrower may at any time and from time to time prior to the
Repayment Date, or the Accelerated Repayment Date as circumstances dictate,
prepay the Debentures in full or in part, including accrued and unpaid interest,
at any time, without penalty. Any prepayment of the Debentures will first be
applied to any accrued and unpaid interest and then to the outstanding principal
amount. 

Security

The outstanding Principal Amount of this Debenture, together
with any and all accrued but unpaid interest thereon will be secured by way of a
General Security Agreement (the "GSA") over all present and after
acquired property and assets (both real and personal property) of the Borrower,
in addition to the specific security set forth in the Subscription Agreement
(the "Subscription Agreement") pursuant to which this Debenture is issued.

Resale Restrictions and Certificate Legends

The Debenture was issued pursuant to exemptions
("Exemptions") from the registration and prospectus requirements of
applicable securities laws. As a result of the Borrower's reliance on
Exemptions, the Debenture will be subject to a number of statutory restrictions
on resale and transfer. Until the restrictions on resale and trading expire, the
registered holder will not be able to sell or trade the Debenture unless the
registered holder complies with an exemption from the prospectus and
registration requirements under applicable securities laws.

The Debenture has not been and will not be registered under the
United States Securities Act of 1933 (the "1933 Act"), as amended, or any
State securities laws, and may not be offered, sold, pledged or otherwise
transferred or assigned, directly or indirectly, in the United States or by or
to a U.S. Person (as defined in Regulation S promulgated under the 1933 Act)
without registration under the 1933 Act and any applicable State securities
laws, unless an exemption from registration is available. The Borrower has no
present intention and is not obligated under any circumstances to register the
Debenture or to take any other actions to facilitate or permit any proposed
resale or transfer thereof in the United States or otherwise by or to a U.S.
Person.

The foregoing is a summary only and is not intended to be
comprehensive or exhaustive, or to apply in all circumstances. The registered
holder is advised to consult with its own advisors concerning its particular
circumstances and the particular nature of the restrictions on transfer, the
extent of the applicable hold period and the possibilities of utilizing any further Exemptions or the
obtaining of a discretionary order to transfer the Debenture. Accordingly, the
registered holder is further advised against attempting to resell or transfer
the Debenture until they have determined that any such resale or transfer is in
compliance with the requirements of all applicable securities laws, including
but not limited to compliance with restrictions on certain pre-trade activities
and the filing with the appropriate regulatory authority of initial trade and
other reports required upon any resale of the Debenture.

- 3 -

Until such time as they are no longer required, the Borrower
may place a legend on the certificate representing the Debenture as may be
required under applicable securities laws or other requirements, or as it may
otherwise deem necessary or advisable.

Debenture Register and Effecting Transfers

The Borrower shall keep a register (the "Register"), in
which shall be entered the name and address of the registered holder of the
Debenture and the outstanding principal amount of the Debenture held by them.
The Borrower may treat the person named in the Register as the absolute owner of
the Debenture for all purposes, and the Borrower shall not be affected by any
notice or knowledge to the contrary except where the Borrower is required to
take notice by statute or by order of a court of competent jurisdiction.

To effect the transfer of the Debenture, the registered holder
thereof, or its duly appointed executor, administrator or other legal
representative as evidenced by written instrument in form, content and execution
satisfactory to the Borrower (collectively, a "transferor"), shall
present and surrender the Debenture to be transferred, together with a duly
completed and executed "Notice of Transfer" in the form attached hereto as
Schedule "A" (collectively, the "Transfer Documentation"), to the
Borrower at the address set out on the first page hereof, unless otherwise
directed by the Borrower in writing.

Upon delivery of the duly completed and executed Transfer
Documentation and the satisfaction of all other requirements of the Borrower,
the transferee shall be entered in the Register as the owner of the Debenture.
Within ten business days, the Borrower shall send or cause to be sent a new
certificate representing the transferred Debenture, registered in the name of
the transferee, by pre-paid ordinary mail to the transferee at the address of
the transferee appearing on the Register.

Replacement Certificate

In the event that the certificate representing the Debenture is
lost, stolen, mutilated or destroyed, the Borrower may on such terms as it may
in its sole discretion impose, including but not limited to the payment of any
administration fee and the provision of any indemnity by the registered holder
thereof, issue and countersign a new certificate of like tenor, denomination and
date as the certificate so lost, stolen, mutilated or destroyed.

Events of Default

Upon an event of default as set out below (an "Event of
Default"), the outstanding principal amount of this Debenture may be declared
due and payable by the registered holder. An Event of Default, for purposes of
this Debenture, is defined as any of the following events:

	 	(a) 	
      if the Borrower makes default in payment when due of any
      payment of principal or interest required under this Debenture, and such
      default continues for a period of five business days after notice in
      writing has been given by the registered holder to the Borrower specifying
      such default and requiring the Borrower to rectify the same;

	 	 	 
	 	(b) 	
      if the Borrower makes default in observing or performing
      any other condition or covenant of this Debenture or in the Subscription
      Agreement on its part to be observed or performed, and such default
      continues for a period of 5 days after notice in writing has been given by
      the registered holder to the Borrower specifying such default and
      requiring the Borrower to rectify the same;

	 	 	 
	 	(c) 	
      if a decree or order of a court having jurisdiction in
      the premises is entered (i) ordering the winding-up or liquidation of the
      Borrower or any of its subsidiaries; (ii) adjudging the Borrower or any of
      its subsidiaries a bankrupt or insolvent under the Bankruptcy and
      Insolvency Act (Canada) or any other bankruptcy, insolvency or
      analogous laws; (iii) appointing a receiver over the Borrower or any of
      its subsidiaries or over all or any substantial part of their property; or
      (iv) issuing sequestration or execution against all or any
      substantial part of the Borrower or any of its subsidiaries' property;
      unless in each case the Borrower or any of its subsidiaries actively and
      diligently contests in good faith such decree or order and has such decree
      or order stayed on or before the date that is 45 days after the issue of
  such decree or order by the court;

- 4 -

	 	(d) 	
      if the holder of any security interest against any of the
      assets of the Borrower or any of its subsidiaries obtains any judgment to
      enforce its security interest against said assets or otherwise obtains
      rights to realize on said assets, and the Borrower or any of its
      subsidiaries fails to actively and diligently contest same in good faith
      and have such judgment or right stayed or otherwise set aside;

	 	 	 
	 	(e) 	
      if the Borrower or any of its subsidiaries makes or
      agrees to make a bulk sale of assets to an acquirer (other than the
      Borrower or a person that directly or indirectly controls, is controlled
      by, or is under common control with the Borrower), or ceases or threatens
      to cease to carry on business; or

	 	 	 
	 	(f) 	
      if a resolution is passed for the winding-up or
      liquidation of the Borrower or any of its subsidiaries; or if the Borrower
      or any of its subsidiaries institutes proceedings to be adjudicated a
      bankrupt or insolvent, or consents to the institution of or the filing of
      any petition for, bankruptcy or insolvency proceedings against it, under
      the Bankruptcy and Insolvency Act (Canada), the Companies
      Creditors Arrangement Act (Canada) or any other bankruptcy, insolvency
      or analogous laws; or if the Borrower or any of its subsidiaries consents
      to the appointment of a receiver over the Borrower or over all or any
      substantial part of their property, makes a general assignment for the
      benefit of creditors or admits in writing its inability to pay its debts
      generally as they become due or takes corporate action in furtherance of
      any of the aforesaid purposes.

The registered holder may waive any breach or default by the
Borrower in the observance or performance of any condition, covenant or
agreement contained in this Debenture or any other event which, without such
waiver, would cause the Debt to become immediately due and owing, but no such
waiver or other act or omission of the registered holder will extend to or
affect any subsequent breach, default or other event, or the rights accruing to
the registered holder resulting therefrom.

Miscellaneous Provisions

Nothing in this certificate or in the holding of this Debenture
shall be construed as conferring upon the registered holder any right or
interest whatsoever as a shareholder of the Borrower or entitling the registered
holder to any right or interest in respect of any common shares of the Borrower
except as herein expressly provided. The Borrower shall not be prohibited from
issuing any other form of debt or debt security, including but not limited to
secured debt, as a result of the Debentures or any of the Securities.

Upon the repayment of the total outstanding Debt, all rights
under this Debenture, other than the right to receive payment to which the
registered holder is entitled on such repayment, as applicable, shall wholly
cease and terminate and this Debenture shall be void and of no further force or
effect or value.

Any delivery or surrender of documents shall be valid and
effective if delivered personally or if sent by registered letter, postage
pre-paid. Any notice shall be valid and effective if delivered or sent as
aforesaid or if electronically transmitted by facsimile transmission tested for
reception prior to use, addressed to:

	 	(a) 	if to the Borrower:
  
	 	  	 	  
	 	  	 	Attention: President 
	 	  	 	VOICE MOBILITY INTERNATIONAL, INC. 
	 	  	 	Suite 107-645 Fort Street 
	 	  	 	Victoria, BC V8W 1G2 
	 	  	 	  
	 	(b) 	if to the registered
      holder, at its last address appearing in the Register,

and shall be deemed to have been effectively given and received
on, as applicable, the date of personal delivery, the fifth business day after
the date of mailing, or the first business day after the date of facsimile
transmission. In the case of disruption in postal services, any delivery or
surrender of documents or notice sent by mail shall not be deemed to have been
effectively given and received until it is delivered. The Borrower and the
registered holder may from time to time change their address for service
hereunder by notice in writing delivered in one of the foregoing manners.

- 5 -

This Certificate is to be governed in accordance with the laws
of the Province of British Columbia and the laws of Canada applicable therein.
The parties hereby attorn to the jurisdiction of the courts of British Columbia
in the event of any dispute hereunder. Time is of the essence hereof.

IN WITNESS WHEREOF the Borrower has caused this
Certificate to be signed by a duly authorized signatory of the Borrower as of
this 4th day of March, 2011.

VOICE MOBILITY INTERNATIONAL, INC.

	Per: 		 
	 	Authorized Signatory 	 

SCHEDULE "A"
to the Secured Debenture 
of VOICE
MOBILITY INTERNATIONAL, INC.

TRANSFER FORM

FOR VALUE RECEIVED, the undersigned (the "Transferor")
hereby sells, assigns and transfers to:

	 
	[Name of Transferee] 
	  
	 
	of 
	[Address of Transferee] 

(CDN)$__________________  in the principal amount of the
Secured Debenture (the "Debenture"), issued by VOICE MOBILITY
INTERNATIONAL, INC. (the "Borrower"), represented by the enclosed
Debenture Certificate (if no amount is specified, the Transferor will be deemed
to be transferring the entire principal amount) and does hereby irrevocably
constitute and appoint:

	 
	 
	
      as attorney to transfer said principal amount of
      Debentures on the books of the Borrower with full power of substitution in
      the premises. 

DATED the _____ day of ________________, 20____ .

	 	} 	 
	 	} 	 
	 	} 	 
	 	} 	Print Name of registered holder as on
      certificate 
	 	} 	 
	 X 	} 	X
  
	 Signature of Witness 	} 	Signature of registered holder or Signatory
      thereof 
	 [Please Note Instruction
      2] 	} 	  
	 	} 	 
	 	} 	If applicable, print Name and Office of
      Signatory 
	 	} 	 
	 	} 	 
	 	} 	Street Address 
	 	} 	 
	 	} 	 
	 	} 	City, Province and Postal Code

INSTRUCTIONS:

1. The registered holder of a Debenture may exercise its right
to transfer its Debenture by completing and surrendering this Transfer Form and
the ORIGINAL Debenture Certificate representing the Debentures being transferred
to the Borrower, as provided for in the Debenture Certificate. Certificates
representing the transferred Debenture will be sent by prepaid ordinary mail to
the address above within five business days after the receipt of all required
documentation.

2. The signature of the registered holder on this Transfer Form
must be medallion guaranteed by an authorized officer of a chartered bank, trust
company or an investment dealer who is a member of a recognized stock exchange,
and the registered holder must pay to the Borrower all applicable taxes and
other duties.

3. If this Transfer Form is signed by a trustee, executor,
administrator, curator, guardian, attorney, officer of a corporation or any
person acting in a fiduciary or representative capacity, this Transfer Form must
be accompanied by evidence of authority to sign satisfactory to the
Borrower.Liberty Energy Corp.: Exhibit 10.1 - Filed by newsfilecorp.com

	ASIA-PACIFIC CAPITAL LTD. 

March 8, 2011

Liberty Energy Corp.,
Two Allen Center, Suite 1600, 1200
Smith Street, 
Houston, TC, 7700

Attention: Ian Spowart

Dear Mr. Spowart:

Re: Letter Agreement

This letter shall set forth an amendment to the share issuance
agreement entered into between Asia-Pacific Capital Ltd., and Liberty Energy
Corp., on July 19, 2010 (the “Share Issuance Agreement”). 

1.         
The Amendment

Pursuant to Section 2.6 of the Share Issuance Agreement,
Asia-Pacific had the option to extend the advances available thereunder by an
additional $4,000,000 once the initial $4,000,000 was received by Liberty
Energy. Despite Liberty Energy not yet having received the full amount of the
initial $4,000,000, we offer to extend the amount of advancements to an
aggregate of $8,000,000. There are no amendments to the remainder of the Share
Issuance Agreement.

2.         
Binding Nature

This Letter Agreement is intended by the Parties to constitute
an offer and acceptance of all provisions hereof and shall be fully binding upon
the Parties upon execution of this Letter Agreement. 

3.        
Acceptance of Fax or Email/Counterparts

The exchange of copies of this and of signature pages by
facsimile or PDF transmission shall constitute effective execution and delivery
of this Letter Agreement as to the Parties hereto and may be used in lieu of the
original Letter Agreement for all purposes. This Letter Agreement may be
executed in any number of counterparts and signatures of the Parties hereto
transmitted by facsimile or PDF shall be deemed to be their original signatures
for all purposes.

As time is of the essence, please indicate your agreement with
this Letter Agreement by signing and returning on copy to Asia-Pacific no later
than 5:00 pm Texas Time on March 14, 2011, after which time we will consider
this Letter Agreement to be null and void. 

Yours very truly,

ASIA-PACIFIC CAPITAL LTD. 

By:
____________________
       Authorized
Signatory

Agreed and accepted this ____ day of___________________ ,
2011.

LIBERTY ENERGY CORP.

By:  _________________________
      
Authorized Signatory

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