The Yeastar TG800 is a powerful VoIP GSM/WCDMA gateway with 8 channels, bridging between GSM or WCDMA network and IP-based systems. Designed to slash the cost of telephone calls, it can find the cheapest route and use the most economical SIM card.

Mobile		8 GSM or WCDMA Channels  (depends on which type of network you order)
GSM Frequency		850/900/1800/1900 MHz
WCDMA Frequency		850/1900 MHz, 850/2100 MHz, 900/2100 MHz
Antenna Splitter (4 in 1)		Support
Protocol		SIP, IAX2
Transport		UDP, TCP, TLS, SRTP
Voice Codec		G.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, ADPCM, Speex
Echo Cancellation		ITU-T G.168 LEC
DTMF Mode		RFC2833, SIP INFO, In-band
Calling Type		Termination (VoIP to GSM/WCDMA), Origination (GSM/WCDMA to VoIP)
Console Port		1
LAN		1 10/100Mbps