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Phone Adapter
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VOIP Phone
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GSM Gateway
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 VP 301 |
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OverView
■ 2*16 Characters LCD display
■ Call Waiting
■ Call Transfer
■ 3 Way Conferences
■ Speaker Phone
■ Call Display
Features
Protocol:
■ SIP call signaling RFC3261 with backward compatible with RFC2543
■ RTP (RFC1889), RTCP (RFC1890)
■ SDP (RFC2327)
■ SPPPoE DDHCP Server/Client
■ NAT DSTUN (RFC3489)
■ Web/Telnet Management DFirmware Upgrade through TFTP/HTTP
■ Auto Provisioning (configuration file) through TFTP/FTP/HTTP
Voice Processing:
■ Codec: G.711 (a-law and u-law), G.723.1A, G.726, G.729A /B.
■ AEC (Acoustic Echo Cancellation)
■ VAD (Voice Activity Detection)
■ CNG (Comfort Noise Generation)
Call Features:
■ Mute, Stop or resume voice transmission
■ Volume adjustment: +/- the volume of handset, speaker and ringer
■ DTMF Relay: Support in-band RTP voice mixing, out-band DTMF over RTP (RFC2833) and through SIP Info
■ Speaker phone, handset-free
■ Calling/called Caller ID
■ Dial tone, DTMF generator, Ring back tone, Busy tone and Ring tone
■ Redial
■ Call Forwarding
■ Call Waiting
■ Call Hold
■ Call Transfer
■ Call Screening
■ 3-way Conference on the phone
■ Speed Dialing
■ Hotline
Call History:
■ Most recently missed calls
■ Most recently received calls
■ Most recently dialed numbers
■ Multiple Outbound Proxy, Registrar and Redirect Server support, up to 3 different service domains
■ Address Book (140 sets)
■ Color Ring
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