EXHIBIT 10.8

                          220-222 MHz LICENSE PURCHASE
                        AND LICENSE ASSIGNMENT AGREEMENT


     This  220-222  MHz  License   Purchase  and   Assignment   Agreement   (the
"Agreement")  is entered into between Digi Link  Technologies,  Inc., a Delaware
corporation ("Digi Link") ("Purchaser"),  and Advanced Business  Communications,
LLC, a Delaware limited liability company ("ABC") ("Seller"), to be effective as
of January ___, 2001 (the "Agreement").

     WHEREAS, Purchaser is engaged in the ownership,  development and management
of 220 MHz specialized mobile radio ("SMR") licenses; and

     WHEREAS,  Seller  desires to sell to Purchaser,  and  Purchaser  desires to
purchase from Seller,  each in accordance  with the terms and conditions of this
Agreement,  all of Seller's right,  title and interest in and to: (i) twenty-six
mobile  communications radio licenses operating or to be operated in the 220-222
MHZ band (the "Systems"), which licenses are evidenced by, and operated or to be
operated  pursuant to, an  authorization  (the "License")  issued by the Federal
Communications  Commission  (the "FCC"),  and Licenses are further  described in
Exhibit A  attached  hereto  and made a part of this  Agreement;  and (ii) those
Spectra  acquired  at Auction 18 and  Auction  24, as more  fully  specified  in
Exhibit B hereto.

     NOW,  THEREFORE,  in  consideration  of  the  mutual  covenants  and  terms
contained herein, and for other valuable consideration,  receipt and sufficiency
of which is hereby mutually  acknowledged,  the Parties hereto,  intending to be
legally bound, agree as follows:

     1. Sale and Purchase

     1.1 Licenses. Subject to the terms and conditions of this Agreement, Seller
agrees to sell, and Purchaser agrees to purchase, subject to prior FCC approval,
all of Seller's right,  title and interest in and to all tangible and intangible
assets (the "Assets") used in connection with the twenty-six  Licenses  (further
described on Exhibit A hereto) including, without limitation,  assignment of the
License,  License  files and records,  customer  lists and  records,  contracts,
leases  and other  agreements,  and  other  assets  owned by Seller  and used in
connection with the operation of the Licenses  existing on the date of execution
of this Agreement,  including those Spectra acquired at Auctions 18 and 24 which
are described in Exhibit B hereto. All  Licenses/Assignments  shall be delivered
to Nancy Van Sant,  Esq.,  Sacher,  Zelman,  Van Sant, Paul,  Beiley,  Hartman &
Waldman, P.A., 1401 Brickell Avenue, Suite 700, Miami, Florida 33131.

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<PAGE>

     1.2  Purchase  Price.  Purchaser  agrees to pay  Seller  $7,200,000,  which
purchase price shall be paid in the form of: (i) 7,200,000  shares of restricted
common stock of Digi Link.

     1.3 Closing.  The purchase and sale of the License shall be  consummated in
the manner  described in this Section 1.3. Upon the signing of this Agreement by
Seller and Purchaser, the following shall occur immediately thereafter:

     (a) Seller shall  deliver to Purchaser  written  confirmation,  in form and
substance reasonably  satisfactory to Purchaser,  that Seller has applied to the
FCC for the  transfer of the  Licenses  and Spectra to  Purchaser  as  described
herein,  including  photocopies of all correspondence and documents exchanged by
Seller and the FCC regarding the License.

     (b) Purchaser shall cause to be prepared a stock  certificate  representing
the  shares  of  Common  Stock to be  delivered  as part of the  Purchase  Price
("Common  Stock") which Common Stock shall be held in escrow by Sacher,  Zelman,
Van Sant, Paul, Beiley,  Hartman & Waldman,  P.A. for ultimate delivery upon the
happening of the events described in paragraph 1.3(c) below.

     (c) Final closing is conditioned  upon final FCC approval.  At such time as
all of the License  transfers  from Seller to Purchaser are approved by the FCC,
Seller  through  Escrow  Agent shall cause the Common  Stock  certificate  to be
delivered to Purchaser.

     1.4 Specific Performance. If Purchaser fails to make payment as required in
this  Agreement or Seller fails to cause transfer of the License to Purchaser to
be  approved  by the  FCC,  each  of the  Parties  agrees  that  the  respective
obligations of the Parties may be specifically enforced.

     2. Representations of Seller. Seller represents, warrants and agrees to and
with Purchaser as follows as of the Effective Date and as of each Closing Date:

     (a) Seller is the sole beneficial, legal and record licensee of the License
and/or has the rights to all such Licenses;

     (b)  Seller has full  power,  authority  and legal  right to  transfer  the
License;

     (c) Other than  restrictions  imposed by the FCC in the ordinary  course of
business, there are no claims, liens or other encumbrances on the License.

     (d) This  Agreement  constitutes  a legal  and  binding  obligation  of the
Seller, and is valid and enforceable  against the Seller and Seller's successors
in accordance with its terms;

     (e) Seller has had the opportunity to discuss  Seller's  acquisition of the
Common Stock, pursuant to this Agreement,  and Seller has obtained or been given
access to all  information  concerning  Purchaser  that  Seller  has  reasonably
requested,   including  all  filings  made  by  Purchaser's  parent,   Greenleaf
Technologies  Corporation,  with the U.S. Securities and Exchange Commission and
the Purchaser's Private Placement Memorandum dated as of November 27, 2000;

                                       17
<PAGE>

     (f) Restricted Stock and Limitations on  Transactions.  ABC understands and
agrees that the issuance of the shares of Digi Link's  Common Stock  pursuant to
this  Agreement has not been and will not be registered  under federal and state
securities  laws and the shares of Digi  Link's  Common  Stock are  "restricted"
securities as defined in Rule 144 under the Securities Act of 1933 ("1933 Act").
ABC may not  redistribute  these  securities and  specifically  understands  and
agrees  that no holder of Digi  Link's  Common  Stock may sell,  offer for sale,
transfer,  pledge or  hypothecate  the shares of Digi Link Common Stock received
pursuant to this Agreement in the absence of an effective registration statement
covering that  transaction,  under all applicable  federal and state  securities
laws, unless that transaction is exempt from  registration  under all applicable
federal  and state  securities  laws,  including  an  exemption  under  Rule 144
promulgated  under the  Securities  Act of 1993,  or an opinion from Digi Link's
counsel and the written consent of Digi Link.

     (g) There are no  restrictions on Seller's right or ability to transfer the
License to Purchaser.

     3. Representations of Purchaser. Purchaser hereby represents,  warrants and
agrees to and with Seller as follows:

     (a) Authority. Purchaser is a corporation, duly organized, validly existing
and in good  standing  under  the laws of the  State  in which it is  organized.
Purchaser has all  requisite  power and authority and the legal right to own its
properties and to conduct its business as currently  conducted,  and to execute,
deliver  and  perform  this  Agreement.  Purchaser's  execution,  delivery,  and
performance  of this  Agreement  has been  duly and  validly  authorized  by all
necessary  action on the part of the  Purchaser.  This  Agreement  has been duly
executed  and  delivered  by  Purchaser  and  constitutes  the valid and binding
obligation  of  Purchaser  enforceable  in  accordance  with its  terms  against
Purchaser  except  as may be  limited  by  laws  affecting  the  enforcement  of
creditors' rights or equitable principles generally.

     (b)  Purchaser  has full  power,  authority  and legal right to acquire the
License from Seller,  and the entering into of this  Agreement by Purchaser does
not require the consent of, or notice to, any party not  previously  obtained or
given; and

     (c) This Agreement constitutes a legal and binding obligation of Purchaser,
and is valid and enforceable  against  Purchaser and  Purchaser's  successors in
accordance with its terms.

     4. Additional Covenants.

     4.1 Brokerage  Commissions and Finders' Fees. Purchaser shall indemnify and
hold harmless Seller from any loss, cost or expense arising out of any claim for
brokerage commissions,  finders' fees or other like payment with respect to this
Agreement or other transfer of the System or license if such claim is based upon
any  agreement  or   understanding   with   Purchaser  or  any  of   Purchaser's
representatives  or agents.  Seller shall indemnify and hold harmless  Purchaser
from any loss, cost or expense arising out of a claim for brokerage commissions,
finders'  fees or other like  payment  with  respect to this  Agreement or other
transfer of the System or License if such claim is based upon any  agreement  or
understanding with Seller or any of Seller's representatives or agents.

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<PAGE>

     5. Miscellaneous.

     5.1 Entire  Agreement.  This  Agreement  constitutes  the entire  agreement
between the Parties with respect to the subject matter hereof.

     5.2  Notice.  All  notices,   requests,   demands,   directions  and  other
communications  ("Notices")  provided for in this Agreement  shall be in writing
and shall be mailed or delivered  personally  or sent by telecopier or facsimile
to the  applicable  Party at the  address of such Party set forth  below in this
Section  5.2.  When  mailed,  each  such  Notice  shall be sent by first  class,
certified mail, return receipt requested, enclosed in a postage prepaid wrapper,
and shall be effective on the third  business day after it has been deposited in
the mail.  When delivered  personally,  each such Notice shall be effective when
delivered to the address for the respective Party set forth in this Section 5.2.
When sent by telecopier or facsimile, each such Notice shall be effective on the
first business day on which or after which it is sent. Each such Notice shall be
addressed to the Party to be notified as shown below:

                  Purchaser:            Digi Link Technologies, Inc.
                                        75 Highway 27
                                        Suite 201
                                        Iselin, New Jersey  08830
                                        Attn:  Peter J. Jegou, Chairman and CEO
                                        Facsimile No.:  (732) 603-6005

                  With a copy to:       Nancy Van Sant, Esq.
                                        Sacher, Zelman, Van Sant, Paul,
                                        Beiley, Hartman & Waldman, P.A.
                                        1401 Brickell Avenue, Suite 700
                                        Miami, Florida  33131

                  Seller:               Advanced Business Communications, LLC
                                        Attn:  Alan Bostom, President
                                        501 4th Street
                                        Aurora, IN  47001
                                        Facsimile No.: (509) 272-6909

                  With a copy to:       Ken Dunn, Esq.
                                        Feder & Dunn, P.A.
                                        11575 Heron Bay Blvd, Suite 309
                                        Coral Springs, Florida  33067
                                        Facsimile No.:  (954) 575-9750

     Either party may change its respective address for purposes of this Section
5.2 by giving the other Party  Notice of the new address in the manner set forth
above.

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<PAGE>

     5.3 Severability. Whenever possible, each provision of this Agreement shall
be  interpreted  in such a manner as to be effective and valid under  applicable
law, and if any  provision of this  Agreement  shall be or become  prohibited or
invalid in whole or in part for any reason  whatsoever,  that provision shall be
ineffective  only  to the  extent  of such  prohibition  or  invalidity  without
invalidating the remaining portion of that provision or the remaining provisions
of this Agreement.

     5.4  Non-Waiver.  The waiver by either  Party of a breach or a violation of
any provision of this Agreement shall not operate or be construed as a waiver of
any subsequent breach or violation of any provision of this Agreement.

     5.5 Amendment.  No amendment or  modification  of this  Agreement  shall be
deemed effective unless and until it has been executed in writing by the Parties
to this  Agreement.  No term or condition of this  Agreement  shall be deemed to
have been waived,  nor shall there be any  estoppel to enforce any  provision of
this  Agreement,  except by a written  instrument  that has been executed by the
Party charged with such waiver or estoppel.

     5.6 Inurement.  This  Agreement  shall be binding upon each of the Parties,
and it shall  benefit each of the Parties and their  respective  successors  and
assigns.  This Agreement  shall not be assignable by either Party.  There are no
third party beneficiaries to this Agreement.

     5.7 Headings. The headings to this Agreement are for convenience only; they
form no part of this Agreement and shall not affect its interpretation.

     5.8   Counterparts.   This  Agreement  may  be  executed  in  one  or  more
counterparts, all of which taken together shall constitute a single instrument.

     5.9 Survival of Representations and Warranties.  Each covenant,  agreement,
representation  and warranty of the parties under this  Agreement  shall survive
for one  year  the  execution  of this  Agreement  and the  performance  of each
respective Party's obligations pursuant to this Agreement.

     IN WITNESS WHEREOF, this Agreement is executed on the dates set forth below
to be effective as of the Effective Date.

Date: 1/22/01                         DIGI LINK TECHNOLOGIES, INC.,
                                      a Delaware corporation


                                      By:/s/: Peter  J. Jegou
                                      Name: Peter J. Jegou
                                      Title: Chairman/CEO


Date:  1/22/01                        ADVANCED BUSINESS COMMUNICATIONS, LLC,
                                      a Delaware limited liability company



                                      By:/s/: Alan Bostom
                                      Name: Alan Bostom
                                      Title: President/Managing Director

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<PAGE>

<TABLE>
<CAPTION>

220 LLC's                                     Tower Lease           Insurance           Linking fees            Monthly Cost
----------------------------------------------------------------------------------------------------------------------------
<S>                                           <C>                   <C>                 <C>                     <C>
Albany I, NY                                       725.00              43.75                  271.82               1,040.57
----------------------------------------------------------------------------------------------------------------------------
Albany I, NY                                       725.00              43.75                 314.031               1,082.78
----------------------------------------------------------------------------------------------------------------------------
Albany III, NY                                     725.00              43.75                                         768.75
----------------------------------------------------------------------------------------------------------------------------
Binghamton, NY                                     850.86              43.75                  233.54               1,128.15
----------------------------------------------------------------------------------------------------------------------------
Buffalo, NY                                        983.00              43.75                  233.54               1,260.29
----------------------------------------------------------------------------------------------------------------------------
Buffalo II, NY                                     983.00              43.75                                       1,026.75
----------------------------------------------------------------------------------------------------------------------------
Cincinnati, OH                                   1,300.00              43.75                  295.68              1,639.43'
----------------------------------------------------------------------------------------------------------------------------
Dayton, OH                                         325.00             43_.75                  282.31                 651.06
----------------------------------------------------------------------------------------------------------------------------
Greenville I, SC                                   550.00              43.75                                         593.75
----------------------------------------------------------------------------------------------------------------------------
Greenville II, SC                                  550.00              43.75                                         593.75
----------------------------------------------------------------------------------------------------------------------------
Hartford, CT                                       450.00              43.75                  290.78                 784.53
----------------------------------------------------------------------------------------------------------------------------
KY/NE/Bozra, CT                                    625.00              43.75                  280.00                 948.75
----------------------------------------------------------------------------------------------------------------------------
Lancaster, PA                                      810.34              43.75                                         854.09
----------------------------------------------------------------------------------------------------------------------------
Louisville I, KY                                   760.44              43.75                                         804.19
----------------------------------------------------------------------------------------------------------------------------
Louisville 11, KY                                  760.44              43.75                                         804.19
----------------------------------------------------------------------------------------------------------------------------
N E/KY                                             275.00              43.75                  185.00                 503.75
----------------------------------------------------------------------------------------------------------------------------
Scranton I, PA                                     250.00              43.75                                         293.75
----------------------------------------------------------------------------------------------------------------------------
Scranton II, PA                                    250.00              43.75                                         293.75
----------------------------------------------------------------------------------------------------------------------------
Syracuse, NY                                       955.86              43.75                  293.19               1,292.80
----------------------------------------------------------------------------------------------------------------------------
Otisco/Syracuse III, NY                            712.00              43.75                                         755.75
----------------------------------------------------------------------------------------------------------------------------
Rochester, NY/ (Baton Rouge)                       745.00              43.75                  335.07               1,123.82
----------------------------------------------------------------------------------------------------------------------------
Utica                                              756.00              43.75                  246.90               1,046.65
----------------------------------------------------------------------------------------------------------------------------
York                                               550.00              43.75                                         593.751
----------------------------------------------------------------------------------------------------------------------------


Network Hub
----------------------------------------------------------------------------------------------------------------------------
Prudential Center, Boston                        742.31 I                                  1,306.151               2,048.461
----------------------------------------------------------------------------------------------------------------------------


Phase II - Builds
----------------------------------------------------------------------------------------------------------------------------
Manchester, NH                                     550.00              43.75                  268.00                 861.75
----------------------------------------------------------------------------------------------------------------------------
Framingham, MA                                     450.00              43.75                  185.00                 678.75
----------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------
Totals:                                        17,359.251           1,093.75                5,021.01 I            23,474.011
----------------------------------------------------------------------------------------------------------------------------
</TABLE>
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<PAGE>


Spectrum Acquired Auction 18

1.       EAG001 -  Group I  (10,15,20)  Northeast Region
2.       BEA003 -  Group D (8,19)       Boston-Worcester, MA/NH/RI
3.       BEA006 -  Group B (3,16)       Syracuse, NY/PA
4.       BEA007 -  Group E (171-180)    Rochester, NY/PA
5.       BEA010 -  Group C (5,18)       NYC, NY/Northern NJ
6.       BEA012 -  Group A (2,13)       Philadelphia, PA/Wilmington, DE/Atlantic
                                         City, NJ
7.       BEA013 -  Group A (2,13)       Washington, DC/Baltimore, MD
8.       BEA015 -  Group B (3,16)       Richmond - Petersburg, VA
9.       BEA019 -  Group C (5,18)       Raleigh - Durham, NC
10.      BEA020 -  Group E (171-180)    Norfolk - Virginia Beech, VA
11.      BEA022 -  Group D (8,19)       Fayetteville, SC
12.      BEA047 -  Group D (8,19)       Lexington, KY/TN/VA
13.      BEA048 -  Group C (5,18)       Charleston, WV/KY/OH
14.      BEA049 -  Group A (2,13)       Cincinnati - Hamilton, OH
15.      BEA050 -  Group B (3,16)       Dayton - Springfield, OH
16.      BEA051 -  Group D (8,19)       Columbus, OH
17.      BEA053 -  Group D (8,19)       Pittsburgh, PA / WV
18.      BEA055 -  Group E (171-180)    Cleveland - Akron, OH
19.      BEA056 -  Group D (8,19)       Toledo, OH



Spectrum Acquired Auction 24

1.       EAG002 -  Group F (1,6,11)     Mid-Atlantic region
2.       EAG004 -  Group H (7,12,17)    Great Lakes region
3.       BEA0055 - Group C (5,19)       Albany-Schenectady-Troy, NY

                                       22