BroadSoft provides VoIP application software designed to enable service providers to deliver hosted telephony and multimedia services to businesses and consumers. It recently aired a in conjunction with Microsoft.  

Sylantro offers server software for hosted IP communication services across fixed, mobile, and cable networks. Sylantro's Synergy and Web services software provide a platform for creating converged services for businesses and consumers (Sylantro recently announced of its Synergy platform with Amazon Web Services' Elastic Compute Cloud.)

BroadSoft acquired Sylantro to eliminate a competitor and build its market position in VoIP applications. BroadSoft provides VoIP applications to eight of the top 10 and 14 of the top 25 largest carriers worldwide, including Korea Telecom, KPN, SingTel, Sprint, Telefonica de Espana, Telstra, T-Systems and Verizon.

Sylantro customers include AT&T, China Netcom, QWEST and Swisscom, among others.

BroadSoft said it intends to support Sylantro's Synergy platform through its direct sales force and authorized Sylantro and BroadSoft partners.