Ribbon Communications Inc - Ordinary Shares S-8 Registration of securities for employees

Exhibit 23.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement on Form S-8 of our reports dated February 25, 2015, relating to the consolidated financial statements of Sonus Networks, Inc. and subsidiaries (the Company), and the effectiveness of the Company’s internal control over financial reporting, appearing in the Annual Report on Form 10-K of Sonus Networks, Inc. for the year ended December 31, 2014.

/s/ Deloitte & Touche LLP

Boston, Massachusetts

July 30, 2015