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Key Features
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Open Standard VoIP Protocols (SIP&H.323)
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Single or Multiple Server Registrations
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Two 10/100 Ethernet for WAN / LAN connections
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Peer-to-Peer IP Calls
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Speech quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter buffer
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Line Echo Cancellation
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VLAN and QoS support
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NAT Transversal and Router functions
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Voice prompts, HTTP Web, Auto Provision support for configuration and updates
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Highly stable embedded Linux operating system in high performance ARM 9 Processor
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Basic Features
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LEDs for Power, Ready, Status, WAN, PC, FXS
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Dial in mode or dial out mode only
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Call forward from GSM to VoIP and VoIP to GSM
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Dial Plan
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Retransmit GSM Caller ID to VoIP terminal
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Enhanced Features
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Dynamic selection of codec
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Advanced jitter buffer
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Automatic traversal of NAT and firewall
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VLAN / Qos
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Router
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Echo cancellation for Speakerphone
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Comfort noise generation (CNG)
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Voice activity detection (VAD)
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Auto provisioning (requires auto provisioning server)
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On line firmware upgrade
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Multi-language support: English and Chinese
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Supported Standards
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ITU: H.323 V4, H.225, H.235, H.245, H.450
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RFC 1889 - RTP/RTCP
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RFC 2327 -SDP
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RFC 2833 - RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
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RFC 2976 - SIP INFO Method
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RFC 3261 - SIP
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RFC 3264 - Offer/Answer model with SDP
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RFC 3515 - SIP REFER Method
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RFC 3842 - A Message Summary and Message Waiting Indicator
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RFC 3489 - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs)
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RFC 3891 - SIP “Replaces” Header
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RFC 3892 - SIP Referred-By Mechanism
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draft-ietf-sipping-cc-transfer-04 - Session Initiation Protocol Call Control Transfer
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Codec: G.711 (A/µ law), G.729A/B, G.723.1
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DTMF: RFC 2833, In-band DTMF, SIP INFO
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Operating temperature: 10°C to 40°C (50°F to 104°F)
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Physical and Environmental
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Storage temperature: 0°C to 50°C (32°F to 122°F)
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Power: 12 VDC 2A (110V-220V) (AC/DC adapter included)
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Warranty: one year
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