IP Phone with PSTN support VPN

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IP Phone with PSTN support VPN
Posting date : Dec 10, 2010
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84-
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IP Phone with VPN/SIP supported + Desktop Style WW 2006 Hardware Overview: 1. Interfaces for Networking, telephone interface, LED indication, and power connector 2. Two RJ-45 networking interfaces support 10/100Mps Fast Ethernet; Built-in Router 3. LED indicators show the functions, like speakerphone, Register Technical Data: 1. Ring Tone, Ring Back Tone, Dial Tone, Busy Tone, User Programming Tone 2. SIP v1 (RFC2543), v2 (RFC3261) 3. IP/TCP/UDP/RTP/RTCP 4. IP/ICMP/ARP/RARP/SNTP 5. TFTP Client/DHCP Client/ PPPoE Client 6. Telnet/HTTP Server 7. DNS Client 8. VPN (PPTP, L2TP) 9. G.711: 64k bit/s (PCM) 10. G.723.1: 6.3k / 5.3k bit/s 11. G.726: 16k / 24k / 32k / 40k bit/s (ADPCM) 12. G.729A: 8k bit/s (CS-ACELP) 13. G.729B: adds VAD & CNG to G.729 Security: • HTTP 1.1 basic/digest authentication for Web setup • MD5 for SIP authentication (RFC2069/ RFC 2617) • VAD: Voice activity detection • CNG: Comfortable noise generator • LEC: Line echo canceller • Packet Loss Compensation • Adaptive Jitter Buffer NAT Traversal: • STUN • Call Hold • Call Waiting • Call Forward • Caller ID • 3-way conference Configuration DTMF Function: • Web Browser • Console/Telnet • Keypad • In-Band DTMF • Out-of Band DTMF • SIP Info

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