1 SIM Card Viop/Goip GSM Adapter

Viop/Goip GSM Gateway
Support IMEI change; SMS;
Support VPN;
GSM Adapter

1 SIM Card Viop/Goip GSM Gateway/Adapter

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GoIP GSM Gateway bridges the GSM and the IP networks by enabling voice communications. It is installed on the Mobile SIM Card, you can register the GSM telephone on the VOIP Softswitch. it can be easily combined into arbitrary number of channels of Large Gateway Group. Low price, perfect sound quality and powerful function make GOIP GSM inevitable choice of system Integrators, traffic Business and soft switch Manufacturers.
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    Support dual protocols: ITU-H.323 V4 and IETF SIP V2
    GSM module for making GSM calls
    Provide 1 Sim Card ports for GSM extensions
    Support G.711 A/μ law, G.729A/B, G.723.1 Codecs
    Support Multiple dial plans and line hunt
    Support QoS, NAT transversal and router function
    Support VAD, CNG, EC

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Key Features

    Open Standard VoIP Protocols (ITU H.323 V4 and IETF SIP V2)
    Single or Multiple Server Registrations
    Two 10/100 Ethernet circuits connect to the LAN and an additional device
    GSM module for making GSM calls
    Speech quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter buffer
    VLAN and QoS support
    NAT Transversal and Router functions
    Voice prompts, HTTP Web, Auto Provision support for configuration and updates
    Highly stable embedded Linux operating system in high performance ARM 9 Processor

Basic Features

    LEDs for Power, Ready, Status, WAN, PC, GSM
    Call forward from GSM to VoIP and VoIP to GSM
    Dial in mode or dial out mode only
    Dial Plan
    Password protection for both GSM dial in or dial out
    Retransmit GSM Caller ID to VoIP terminal

Enhanced Features

    Dynamic selection of codec
    Advanced jitter buffer
    Automatic traversal of NAT and firewall
    VLAN / Qos
    Router
    Echo cancellation for Speakerphone
    Comfort noise generation (CNG)
    Voice activity detection (VAD)
    Auto provisioning (requires auto provisioning server)
    On line firmware upgrade
    Multi-language support: English and Chinese

Supported Standards

    ITU: H.323 V4, H.225, H.235, H.245, H.450
    RFC 1889 - RTP/RTCP
    RFC 2327 SDP
    RFC 2833 RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
    RFC 2976 SIP INFO Method
    RFC 3261 SIP
    RFC 3264 Offer/Answer model with SDP
    RFC 3515 SIP REFER Method
    RFC 3842 A Message Summary and Message Waiting Indicator
    RFC 3489 Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs)
    RFC 3891 SIP Replaces Header
    RFC 3892 SIP Referred-By Mechanism
    draft-ietf-sipping-cc-transfer-04 Session Initiation Protocol Call Control - Transfer
    Codec: G.711 (A/µ law), G.729A/B, G.723.1
    DTMF: RFC 2833, In-band DTMF, SIP INFO

Physical and Environmental

Operating temperature: 10°C to 40°C (50°F to 104°F)

Storage temperature: 0°C to 50°C (32°F to 122°F)

Weight:500 g (1 lb) (Including AC/DC Adapter)

Size:105 mm (W) x 100 mm (L) x 28 mm (H) (Width x Length x Heigth

Power: 12 Vdc 500 mA (AC/DC adapter included)