Key Facts
3 way conference call, full duplex hands-free speakerphone; NAT transverse�Gsupport STUN client; CE APPROVL

Packing Detail
VOICE FEATURES:
Codec�GG.711A/u, G.7231 high/low, G.729a/b
Echo cancellation: G.168; Hands-free support 96ms
Full duplex hands-free speakerphone
Voice Gain Setting, Jitter Buffer, VAD, CNG
NAT transverse�Gsupport STUN client
Support SIP domain, SIP authentication
Support Pubic & Private server; Can connect to ISP & Private SIP server simultaneously
DTMF�GSupport SIP info, DTMF Relay, RFC2833
Support Call forward/transfer/holding/waiting
Call control features: Flexible dial map, support Hotline, Empty calling No. reject service, Black list for reject authenticated call, No disturb, Caller ID.
Support conference call & voice record