Yeastar
Yeastar TB400 4-Port BRI VoIP Gateway - Ports: 4x BRI, 1x 10/100Mbps LAN - Protocol: SIP (RFC3261) - Transport Protocol: UDP, TCP, TLS, SRTP - Codec: G.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, ADPCM - DTMF Mode: RFC2833, SIP Info, In-band - Network:...