Full specification
4 x BRI Ports (RJ45)
1 x 10/100Base-T Ethernet
1 x Console Port (RJ11)
Protocol: SIP (RFC3261)
Transport: UDP, TCP, TLS, SRTP
Codecs: G.711 (alaw/ulaw), G.722, G.726, G.729A, GSM, ADPCM
DTMF: RFC2833, SIP Info, In-band
Modes: Programmable TE/NT
Power: 12V DC adapter
Network: DHCP, DDNS, Firewall, Static Route, VLAN, OpenVPN
