Comverse, Inc. 200 Quannapowitt Parkway * Wakefield, Massachusetts 01880 Telephone: 1 ###-###-####

Exhibit 10.126

August 20, 2009

Ms. Danna Rabin

Dear Danna:

This letter confirms our offer to you for the position of Vice President of Sales Operations within Comverse, Inc. (hereinafter “Comverse” or “Company”). This position will be based New York, NY reporting to Urban Gillstrom, Senior Vice President of Global Sales. Although the offered employment in the United States is for a two (2)-year assignment, during which time you will be working pursuant to an approved United States work visa, your employment with the Company during this time will be “at will.” Consequently, you are free to resign at any time with or without notice to Comverse and Comverse may terminate your employment at any time with or without cause or notice to you. For additional details regarding the offered employment in the United States, please see the Employment, Non-Disclosure and Non-Competition Agreement, which is being provided to you along with this offer letter and which must be signed and returned by you before you commence work for Comverse in the United States. As your assignment term nears its conclusion, Comverse will review and make a determination as to whether your United States assignment will be extended.

Start Date

Your start date in the offered position of Vice President of Sales Operations will be August 24, 2009. After your acceptance of this offer and as soon as you are able upon obtaining valid United States work authorization, you will be expected to relocate to New York, NY from your current location.

Compensation

Your initial base salary for this exempt position will be $6923.08US bi-weekly, which is equivalent to $l80,000.00US per year and which will go into effect upon your relocation to the United States. The housing allowance you will receive as part of your relocation package (explained and summarized in the addendum to this offer letter) will also go into effect upon your relocation to the United States.

In addition to your base salary, you will be eligible to participate in the Comverse Incentive Compensation Plan which may result in additional bonus compensation to you, as described in that Plan. Your eligibility start date and other details covering this Plan will be outlined for you shortly after the start of your employment.

Medical and Other Benefits

You will be eligible to enroll in those Company benefits offered to other employees in equivalent position, which currently include:

Comverse, Inc.

200 Quannapowitt Parkway * Wakefield, Massachusetts 01880

Telephone: 1+ ###-###-####

The benefits listed above and Comverse’s employment practices and policies may be changed by Comverse from time to time. Eligibility to participate in certain benefits is governed by applicable plan documents. Details regarding these benefits will be provided during your new hire orientation, which will be provided to you upon your acceptance and start of employment in the United States. At 1:00PM EST each Monday, new hire orientation will be conducted from the Wakefield, MA office of Comverse. If you are then present in Wakefield, please proceed to the main entrance lobby prior to 1:00 pm and an HR representative will greet you. If you then are located outside of Wakefield, we will host orientation at via a web conferencing tool. Please check your email for access instructions. Please bring originals of all signed documents with you to orientation if you have not already mailed them.

United States Employment Eligibility Verification

In compliance with the Immigration Reform and Control Act of 1986 (“IRCA”), during your new hire orientation and within the first three (3) days of your paid employment in the United States, you will be required to complete a Form I-9 Employment Eligibility Verification and present unexpired, qualifying documents establishing your employment eligibility in the United States. Please be advised that noncompliance with this legal requirement and process imposed by IRCA in a timely manner can result in a suspension of your employment in the United States.

Relocation to the United States

In addition to the benefits listed above, upon your acceptance of this offer, you will also receive relocation services to facilitate your move to the United States from your current location. Furthermore, you will also receive repatriation services to facilitate your return to your home country at the conclusion of your temporary assignment in the United States. A comprehensive explanation and summary of the relocation and repatriation benefits which are offered to you are set forth in the attached ADDENDUM, which is hereby incorporated by reference into this offer letter.

Notice of Assignment End

As stated above, your employment with Comverse in the United States will be “at will”, which means that either you or Comverse may terminate the employment relationship at any time with or without cause or notice to you. However, if Comverse decides to terminate your assignment without cause in the United States prior to the end of your two (2)-year assignment period, Comverse will provide you with three (3) months’ notice period in order that you and your family members can prepare for your return to your home country. If your employment is terminated for-cause (as this term is defined in your signed Employment, Non-Disclosure and Non-Competition Agreement), then no notice period will be provided to you.

Governing Law

Neither this offer letter, the Employment, Non-Disclosure and Non-Competition Agreement, nor the content of any discussions with Comverse constitutes a contract of employment for any specified duration

Comverse, Inc.

200 Quannapowitt Parkway * Wakefield, Massachusetts 01880

Telephone: 1+ ###-###-####

or a guarantee of any level of benefits or compensation. You should not rely upon any other prior agreements, statements, communications, or representation, written or oral, in accepting this offer. It is understood and agreed that this letter and the Employment, Non-Disclosure and Non-Competition Agreement constitute the entire agreement between Comverse and you with respect to your employment by the Company. This offer cannot be modified or amended unless such a change is made in writing and signed by an authorized Comverse representative. In the case of a conflict between the provisions of this letter and the Employment, Non-Disclosure and Non-Competition Agreement, the provisions of the Employment, Non-Disclosure and Non-Competition Agreement shall control. The interpretation of this letter and any dispute hereunder is subject to the laws of the Commonwealth of Massachusetts, USA. The parties agree that any such dispute shall be resolved in the Commonwealth of Massachusetts.

If you are in acceptance of this offer, please sign and date this offer letter where indicated below, initial and date each page of the attached Addendum and sign and date the Employment, Non-Disclosure and Non-Competition Agreement. Once all documents have been fully executed by you, please return both original documents to the attention of the Employment Department at Comverse, Inc., Attention: Employment Department, 200 Quannapowitt Parkway, Wakefield, MA 01880. Please keep a copy of all of these documents for your files.

We look forward to welcoming you as part of our Comverse organization in the United States. The opportunities for personal and professional growth are great and we believe your contributions will greatly increase our likelihood of continued success.

This offer will remain in effect until 5:00 PM US EST on August 24, 2009.

Comverse, Inc.

200 Quannapowitt Parkway * Wakefield, Massachusetts 01880

Telephone: 1+ ###-###-####

ADDENDUM

Relocation to the United States

You will be eligible for the relocation services and benefits outlined within this addendum, in accordance with Comverse’s relocation programs, policies and practices in effect at the time of this offer. Subject to the terms and conditions explained in this addendum, Comverse will cover the costs associated with the following relocation services to the United States for you and any of your qualifying, accompanying family members (limited to legal spouse, spousal equivalent and unmarried, dependent children up to their 19th birthday).

Any services not specifically provided below will not be part of the relocation package offered to you. If any of the below-listed relocation services are not required by you, you will not be permitted to exchange the unneeded services for cash allowance or any other service not provided within the terms of this offer letter.

Any request for Comverse sponsorship of United States lawful permanent residence will be considered at the complete discretion of Comverse and in accordance with Comverse’s United States Immigration Policy in effect at the time of the request.

Comverse, Inc.

200 Quannapowitt Parkway * Wakefield, Massachusetts 01880

Telephone: 1+ ###-###-####

Receipts-driven reimbursement for relocation expenses up to $13,000.00US (thirteen thousand U.S. dollars). Qualifying expenses are limited to the following, without exception. If any of the below qualifying expenses are for services, company-approved vendors must be used.

If you voluntarily terminate or otherwise leave your employment for reasons within your own control, or if you are terminated for-cause (as the term is defined in your signed Employment, Non-Disclosure and Non-Competition Agreement with Comverse) within one (1) year from the date of commencement of work in your new work location, you will be required to promptly re-pay the full cost of all relocation services provided to you and as contained within this offer and any and all other additional costs directly associated with your relocation, paid for by Comverse. If you voluntarily terminate or otherwise leave your employment for reasons within your own control, or if you are terminated for-cause (as the term is defined in your signed Employment, Non-Disclosure and Non-Competition Agreement with Comverse) within the second year of your employment from the date of commencement of work in your new work location, you will be required to promptly re-pay one-half (1/2) or fifty percent (50%) of the total cost of all relocation services provided to you and as contained within this offer and any and all other additional

Comverse, Inc.

200 Quannapowitt Parkway * Wakefield, Massachusetts 01880

Telephone: 1+ ###-###-####

costs directly associated with your relocation, paid for by Comverse. The applicable amount may be deducted from your final pay to the extent permitted by United States employment laws. If your final pay is not sufficient to cover all of the expenses, you promise and agree to pay Comverse upon demand the remaining balance.

Repatriation to Home Country

Except as otherwise provided within this addendum and offer letter, at the conclusion of your two (2)-year temporary assignment, Comverse will provide and pay for the following services in order to repatriate you back to your home country:

Receipts-driven reimbursement for repatriation expenses up to $9,000.00US (nine thousand U.S. dollars). Qualifying expenses are limited to the following, without exception. If any of the below qualifying expenses are for services, company-approved vendors must be used.

The following provisions outline the conditions under which Comverse may or may not provide and pay for the repatriation services described within this addendum:

Comverse, Inc.

200 Quannapowitt Parkway * Wakefield, Massachusetts 01880

Telephone: 1+ ###-###-####

Comverse, Inc.

200 Quannapowitt Parkway * Wakefield, Massachusetts 01880

Telephone: 1+ ###-###-####