VOIP SIP IP Phone With three way calling conference [i3p]

VP-32 VoIP SIP IP Phone fully complies with SIP RFC3261 protocol to support call modes of Proxy server and peer to peer. DDSN function provides another call mode. Built-in function of Outbound Proxy, STUN and uPnP enables VoIP traffic to traverse firewall and NAT. It assures the quality of conversation with several Codec standard, including G723.1, G729A and G729B. Using G.165, G.168 echo canceller with jitter buffer features good voice quality. Its easy to connect VP-32 to ITSP, ISP or Carrier Company via ADSL/Cable Modem to get the VoIP telephony service for residential or SOHO. For enterprise, it only connects to internal LAN network.



Network protocol:-
*   SIP (RFC3261) 
*   IP/TCP/UDP
*   RTP/RTCP
*   IP/ICMP
*   ARP/RARP
*   TFTP Client
*   DHCP Client
*   Telnet/HTTP Server
*   PPPoE Client
*   DNS Client
*   DNS Client 

Codec:-
*   G.711: 64k bit/s (PCM a /u law)
*   G723: 1.6k /5.3k bit/s (optional)
*   G.729A: 8k bits (CS-ACELP) (optional)
*   G.729B: adds VAD & CNG to G.729 (option)

Voice Quality:-
*   VAD: Voice Activity Detection (silence suppression)
*   CNG: (Comfortable Noise Generator)
*   AEC: Acoustic Echo Canceller
*   G.165: Line Echo Canceller (LEC)
*   G.168: Digital Network Echo Canceller (EC)

Call function:-
*   Three way call conference
*   Call Transfer: on site
*   Call Forward: unconditional, busy, no answer
*   Call Waiting
*   Call Mute
*   Caller ID (for IP phone)

DTMF function:-

*   In Band DTMF
*   Out of Band DTMF (RFC2833)

Tone:-
*   Ring Tone (5 types)
*   Ring Back Tone
*   Dial Tone
*   Busy Tone

Phone Function:-
*   Volume Adjustment
*   Speed dial key
*   Phone book
*   Call History
*   Redial

 IP Assignment:-
*   Static IP
*   DHCP client
*   PPPoE

 NAT traversal:-
*   STUN
*   UPnP
*   Outbound Proxy

Configuration:-
*   Web Browser
*   Keypad with LCD display
*   Telnet (option)

Firmware Upgrade:-
*   Web Browser
*   TFTP (optional)

Specifications:-