Yeastar MyPBX Enterprise M2 is a hybrid IP-PBX, which is designed for mid-sized companies and divisions of large organizations. Besides working with VoIP-SIP and IAX, the device works effectively with connection to analog phone lines like traditional telephony.
From mobiSIP Android or iPhone: SIP Client iPhone is uniquely designed and developed to add the power of making voice over internet transfer protocol calls directly through the Android or iPhone. It’s developed by mobisnow.