SIP-GW2

SIP-GW2 is analog telephone adaptor with SIP protocol, one WAN interface to internet, one LAN interface to PC, 1 FXS for regular phone, 1 FXO for PSTN call relays. All cordless phones and regular phones can be used to make and receive VoIP call. Phone can be used to make a regular call at the same time. Phone rings for all incoming VoIP and PSTN calls, VoIP or PSTN calls selected by phone key (**).

SIP-GW2 Brochure Download:

Key Features

• Make/Receive both VoIP calls and regular PSTN calls.
• Auto-detection and auto-switch to VoIP or PSTN calls.
• Phone rings for all incoming VoIP and PSTN calls.
• VoIP or PSTN calls selected by phone key (**).
• Supports SIP 2.0(RFC 3261), PPPoE, STUN, DHCP(both client and server) etc.
• Built-in router, NAT, gateway, LAN pass and DMZ port forwarding.
• Support various voice codec including G.711U, G.711A, G.729A.
• Support Caller ID/Name display or block.
• Support call hold, call waiting, call forwarding, and call transfer.
• Support in-band and out-of-band DTMF transfer.
• Dial plans, dial tone ,busy tone, ring back tone, alert tone can be set flexible.
• Support silence suppression, VAD, CNG, line echo cancellation (G.168), AGC, and QoS.
• Support standard encryption and authentication (DIGEST using MD5 and MD5-sess).
• Support automated NAT traversal without manual manipulation of firewall/NAT.
• Support firmware upgrade via TFTP, FTP and HTTP.

WARNING!!! THIS DEVICE DOES NOT ACT AS A PSTN PROXY FOR A VOIP SYSTEM, IT MERELY ALLOWS A TERMINAL TO MAKE PSTN CALLS, OUTSIDE THE VOIP NETWORK. In other words this is a simple FXS ATA with the option of making calls ONLY from the terminal connected to it and from not the rest of the network.