Exhibit 10.3

PATENT LICENSE AGREEMENT

THIS PATENT LICENSE AGREEMENT (the “Agreement”) is made and entered into on October 1, 2014 by and among:

Inventergy Global, Inc., a Delaware corporation having its principal place of business located at 900 E. Hamilton Avenue, Suite 180, Campbell, CA 95008;

Inventergy, Inc., a Delaware corporation having its principal place of business located at 900 E. Hamilton Avenue, Suite 180, Campbell, CA 95008 (collectively, “Licensor”); and

DBD Credit Funding LLC, an entity incorporated under the laws of Delaware having its principal place of business located at One Market Plaza, Spear Tower, 42^nd Floor, San Francisco, CA 94105 (“Licensee”).

Licensor and Licensee are sometimes referred to herein individually as a “Party” and collectively as the “Parties”.

WHEREAS, reference is made to the Revenue Sharing and Note Purchase Agreement, dated as of the date hereof (as it may be amended, restated, supplemented or otherwise modified from time to time, the “Revenue Sharing and Note Purchase Agreement”), by and among the Licensor, the Purchasers (including the Licensee) and the Licensee, acting as the Collateral Agent, and the Security Agreement, dated as of the date hereof (as it may be amended, restated, supplemented or otherwise modified from time to time, the “Security Agreement”), by and among the Grantors (as defined therein, including Licensor) and the Licensee, acting as the Collateral Agent;

WHEREAS, in consideration of the investments set forth in the Revenue Sharing and Note Purchase Agreement, Licensor agreed to grant certain rights, including rights to license patents and patent applications, to the Licensee for the benefit of the Secured Parties; and

WHEREAS, Licensor is the owner of certain patents and patent applications identified in Schedule I(a) of the Revenue Sharing and Note Purchase Agreement, which Schedule I(a) shall be an integral part of this Agreement; and

NOW, THEREFORE, in consideration of the premises and the mutual covenants and agreements contained herein, the Parties hereto agree as follows:

In this Agreement, the following terms shall have the assigned meaning. Capitalized terms used in this Agreement but not defined herein shall have the meaning given to them in the Revenue Sharing and Note Purchase Agreement and/or the Security Agreement, as applicable.

“Licensed Patents” shall mean the Patents listed on Schedule I(a) of the Revenue Sharing and Note Purchase Agreement.

Upon request, Licensee shall notify Licensor of any infringement of the Licensed Patents by third parties of which Licensee become aware. Licensor shall have the sole right, at its expense, to bring any action on account of any such infringement of the Licensed Patents, and Licensee shall reasonably cooperate with Licensor, as Licensor may request and at Licensor’s expense, in connection with any such action brought by Licensor.

Any rights and obligations which by their nature survive and continue after any expiration or termination of this Agreement will survive and continue and will bind the Parties and their successors and assigns, until such rights are extinguished and obligations are fulfilled.

The Parties intend that the licenses granted under this Agreement are, and shall otherwise be deemed to be, for purposes of Section 365(n) of the United States Bankruptcy Code, 111 U.S.C. § 101, et seq. (“Bankruptcy Code”), licenses of rights to “intellectual property” as defined in the Bankruptcy Code.

Licensee and each of its sublicensees may, without the consent of Licensor, assign any or all of their rights and interests, and delegate any or all of their obligations without restriction, upon notice to the Licensor. The rights and obligations of the Parties hereto shall inure to the benefit of, and be binding and enforceable upon and by, the respective successors and assigns of the Parties.

This Agreement along with the pertinent provisions of the Revenue Sharing and Note Purchase Agreement constitute the sole, final and entire understanding of the parties hereto concerning the subject matter hereof, and all prior understandings having been merged herein. This Agreement cannot be modified or amended except by a writing signed by the Parties hereto. The language used in this Agreement will be deemed to be the language chosen by the Parties hereto to express their mutual intent, and no rule of strict construction will be applied against any Party.

The provisions of this Agreement shall be deemed severable and the invalidity or unenforceability of any provision shall not affect the validity or enforceability of the other provisions hereof. If any provision of this Agreement, or the application thereof to any Person or any circumstance, is invalid or unenforceable, (a) a suitable and equitable provision shall be substituted therefor in order to carry out, so far as may be valid and enforceable, the intent and purpose of such invalid or unenforceable provision and (b) the remainder of this Agreement and the application of such provision to other Persons or circumstances shall not be affected by such invalidity or unenforceability, nor shall such invalidity or unenforceability affect the validity or enforceability of such provision, or the application thereof, in any other jurisdiction.

All notices, requests, claims, demands, and other communications hereunder shall be in writing and shall be given (and shall be deemed to have been duly given upon receipt) by delivery in person, or by overnight delivery service from a recognized carrier, to the respective Party as follows:

if to Licensor:

Inventergy, Inc.

900 E. Hamilton Avenue, Suite 180

Campbell, CA 95008

Attention: Wayne Sobon

Telephone: (408) 389-3510

Facsimile: (408) 389-3548

Electronic Mail: wayne@inventergy.com

With a copy to:

Ellenoff Grossman & Schole LLP

1345 Avenue of the Americas

New York, NY 10105-0302

Attention: Joseph A. Smith, Esq.

Telephone: (212) 370-1300

Facsimile: (212) 370-7889

Electronic Mail: jsmith@egsllp.com

if to Licensee:

Fortress Investment Group

One Market Plaza

Spear Tower, 42^nd Floor

San Francisco, CA 94105

Attention: Yoni Shtein

With a copy to:

Fortress Investment Group

One Market Plaza

Spear Tower, 42^nd Floor

San Francisco, CA 94105

Attention: James K. Noble III

or to such other address as the person to whom notice is given may have previously furnished to the other Party in writing in the manner set forth above.

This Agreement, and all claims arising hereunder or relating hereto, shall be governed by and construed in accordance with the internal laws of the State of New York in the United States of America applicable to agreements made and to be performed entirely within such State, without regard to the conflicts of law principles of such State that would result in the application of the laws of another jurisdiction. In any action or proceeding between either of the Parties arising out of or relating to this Agreement or any of the transactions contemplated by this Agreement, each of the Parties (a) irrevocably and unconditionally consents and submits to the exclusive jurisdiction and venue of the state and federal courts residing in the State of New York and (b) agrees that all claims in respect of such action or proceeding must be heard and determined exclusively in the state or federal courts in the State of New York. Each Party shall be entitled to seek injunctive or other equitable relief, without the posting of a bond, at any time (with or without delivering a demand notice) whenever the facts or circumstances would permit a Party to seek such equitable relief in a court of competent jurisdiction.

Except as otherwise provided herein, any failure of any Party to comply with any obligation, covenant, agreement, or condition herein may be waived by the Party entitled to the benefits thereof only by a written instrument signed by the Party granting such waiver; provided, however, that such waiver or failure to insist upon strict compliance with such obligation, covenant, agreement, or condition shall not operate as a waiver of, or estoppel with respect to, any subsequent or other failure.

This Agreement may be executed in one or more counterparts, each of which will be an original and both of which will constitute together the same document. Counterparts may be signed and delivered by facsimile or PDF file, each of which will be binding when received by the applicable Party.

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IN WITNESS WHEREOF, the Parties have executed this Agreement as of the date first written above.