This is a device allowing a user to make VoIP calls using session initiation protocol (SIP). SIP is a telecommunication technology developed as a fast, easy standard for delivering IP-based data, voice, and video communications.
SunComm Technology Co., Ltd. Core members have been engaged in the communication & networks industry since 1977. Their main products in 2009 focus on GSM, VoIP, 3G Devices.
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