Grandstream SIP Phones Interoperable with Sonetel Global PBX Service for SMBs

Combination of Sonetel Free PBX Service with Grandstream HD and IP Multimedia Endpoints Yields Plug-n-Play Global IP Voice and Video Calling Solution with No Monthly Cost and Minimum Investment 

Brookline, MA (July 21, 2011) – Grandstream Networks, the leading manufacturer of IP voice/video telephony and video surveillance solutions, and Sonetel, the first company worldwide to offer a scalable, free, global PBX service for businesses, today announced that small to medium-size businesses (SMBs) worldwide can easily and reliably use a range of Grandstream HD IP Phones to connect with Sonetel’s Phone System.