Main Chipset

Support SIP 2.0 (RFC3261) and correlative RFCs
Support 2 sip line
Codec:G.711A/u, G.7231 high/low, G.729a/b, G.722,
Echo cancellation: G.168 Compliance in LEC, additional acoustic echo cancellation(AEC) can reach 96ms max filter length in hands-free mode
Support Voice Gain Setting, VAD, CNG
Full duplex hands-free speakerphone
DTMF MODE:DTMF_RELAY, SIP_INFO, RFC_2833
NAT transverse:support STUN client
 
Functions

SIP application:support Call forward/transfer/holding/waiting/3 way call/call park/join call/click to dial
SIP support SIP domain, SIP authentication (none, basic, MD5), Peer to Peer call
Call control features: flexible dial map, hotline, empty calling no. reject service, black list for reject authenticated call, white list, limit call, no disturb, caller ID,
Incoming calls /outgoing calls / missing calls. Each support 100 records
Support Phonebook 500 records
10 kind of ring type
Support Conference
Support Mute
Support MWI
 
Spec

Interface:1 WAN,1LAN
Support:2 SIP accounts