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add to cartThe GN-2112 offers the entry-level IP Telephony user superb audio quality, rich functionalities, interoperability with the leading 3rd party VoIP providers, and compatibility with most service providers. The GN-2112 is compact, works with any PSTN or cordless phone and fax machines and offers the simplicity of plug and dial, making it ideal for the basic IP telephony user. Features: • Supports SIP 2.0 (RFC 3261) , TCP/ UDP/ IP, RTP/ RTCP, HTTP, ICMP, ARP/ RARP, DNS, DHCP (both client and server) , NTP, PPPoE, STUN, UPNP, TFTP, etc.
an Internet data, voice, fax and PSTN all-in-one integrated access device based on SIP standard. The GN-2112 features a high-level of integration including an integrated router, NAT, UPNP, DHCP server, 1 port FXS telephone gateway, and 1 port fully programmable FXO gateway for toggling operations between SIP and PSTN networks.
• Built-in router, NAT, Gateway and port forwarding
• Supports call origination and termination from/ to the PSTN network
• Powerful digital signal processing (DSP) to ensure superb audio quality; advanced adaptive jitter control • and packet loss concealment technology
• Support various vocoders including G. 711 (a-law and u-law) , G. 729A/ B etc.
• Support Caller ID/ Name display or block, Hold, Call Waiting/ Flash, Call Transfer, Call Forward, in-band • and out-of-band DTMF, Dial Plans, etc.
• Support fax pass through and T. 38 (Pending) .
• Support Silence Suppression, VAD (Voice Activity Detection) , CNG (Comfort Noise
• Generation) , Line Echo Cancellation (G. 168) , and AGC (Automatic Gain Control)
• Support standard encryption and authentication (DIGEST using MD5 and MD5-sess)
• Support for Layer 2 (802.1Q VLAN, 802.1p) and Layer 3 QoS (ToS, DiffServ, MPLS)
• Support automated NAT traversal without manual manipulation of firewall/ NAT
• Support device configuration via built-in IVR, Web browser or central configuration file through TFTP or HTTP
• Support firmware upgrade via TFTP or HTTP with encrypted configuration files.
• Support volume amplification
• Support configurable Call Progress Tones
• Ultra compact (wallet size) and lightweight design, great companion for travelers
• Compact, lightweight Universal Power adapter.