* Model Name/Number Yeastar TA400 Protocol SIP Voice Codec G.711 (alaw/ulaw),G.722,G.723,G.726,G.729A,GSM,ADPCM Call Handling BELL202,ETSI (V23),NTT (V23-Japan),and

* DTMF-based CID Usage/Application DHCP,DDNS,OpenVPN,PPPoE,Static Route,VLAN Audio Codecs G.711 (alaw/ulaw),G.722,G.723,G.726,G.729A,GSM,ADPCM Connectivity RJ11 FXS Ports