IP-12 VoIP is a kind of voice communication terminal which is based on wide band and independent of PC (personal computer). Voice Features
* Support SIP RFC3261 RFC3262 RFC3265
* Codec:G.711A/u, G.7231 high/low, G.729
* Echo cancellation: Support G.168, and Hands-free can support 96ms
* Full duplex hands-free speakerphone
* Support Voice Gain Setting, Jitter Buffer, VAD, CNG
* NAT transverse:support STUN client * SIP support SIP domain, SIP authentication (none, basic,[...]