Voip phone

1. Standalone operation, no computer needed;
2. Uses broadband cable/xdsl or network connection for high quality voice over ip;
3. Supports sip, h.323 v4, mgcp, iax2, net2phone etc protocol;
4. Large lcd screen display;
5. With single/double rj45 broadband socket;
6. With h.323 proxy server inside;
7. Startup h.245 tunnel quickly;
8. Supports h.245 and q.931 keypad out-band dtmf transfering method;
9. Send and receive incoming caller id with q.931 protocol;
10. Supports calling directly to ip address;
11. Supports e.164 telephone number calling when gatekeeper used;
12. Search the gatekeeper in lan automatically;
13. Supports calling to pstn normal telephone with prepaid card issued by itsp ( net2phone, etalk etc.);
14. Supports pppoe (connect to internet with adsl and cable modem);
15. User can set the phone with standard web browser(internet explorer 6.0) or using telnet software;
16. Online software upgrade with ftp;
17. Supports g.723.15.3k/6.3k g.729, g.711a-law+law voice encoding and decoding arithmetic;
18. Dynamic voice inspection, cng (comfort noise generation) , dynamic voice jitter buffer;
19. According with g.165 16ms echo counteraction;
20. According with itu-t standard tone(dialing tone, busy tone etc.) and dtmf tone generation and inspection;
21. Supports the dialing rule basing on e.164 coding;
22. Up to 112 groups of fast dialing numbers;
23. 40 groups of incoming and outgoing numbers in memory;
24. 16 groups of voice message;
25. Volume of handset adjustable;
26. Volume of speaker adjustable;
27. Voice guide