Product Description

Support H. **3 v4, compatible with most H. **3 v*-v4 system and devices Built in H. **3 proxy support to pass NAT Support MGCP RFC***5 Support SIP RFC***1 Support Net2phone private protocol Fast start and H. **5 tunneling Outband DTMF transmit by H. **5 user or Q. **1 keypad IEEE **2. 3 /**2. 3 u *0 Base T / **0Base TX Major G. 7XX and gsm**0 audio codec Caller ID send and receive by Q. **1 Provide direct IP address to IP address call mode, direct PSTN call by a voice gatewayE. **4 phone number call under the mode of GK Automatically gatekeeper discovery in LAN Call PSTN by ITSP prepaid card (eTalk, italk, ringtec etc) DHCP support for automatically assign IP address and others relevant parameters PPPoE support for ADSL or Cable modem Setting IP Net Phone parameters by standard web browser (such as IE6. 0), phone keypad or standard telnet Upgrade program by FTP mode Support G. **3. 1 5. 3k/6. 3k, G. **9, G. **1 A-Law, μ-Law audio codec algorithm Dynamic voice detection Echo cancellation Comfort noise generation Dynamic voice jitter buffer which minimize effect to the voice caused by the audio delay and jitter and as a result the quality of voice is high Tone generation and Local DTMF generation and detection according with ITU-T E. **4 dial plan and customized dial rules *0 entries each for missed call, answered call and dialed call **2 entries for quick dial *6 entries for voice message Settings by HTTP web browser (IE6. 0) Advanced settings by Telnet Voice prompt Upgrade by TFTP