New Arrivel!16 Port Gsm Terminal Voip Gateway,goip-16
Specifications
1,16 port gsm voip gateway for call terminal2,support IMEI change
3,Built-in encryption
4,call back&SMS
5,SIP&H.323
16 port gsm voip goip gateway call Terminal Description:
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Key Features |
Open Standard VoIP Protocols (SIP&H.323) |
Single or Multiple Server Registrations | |
Two 10/100 Ethernet for WAN / LAN connections | |
Peer-to-Peer IP Calls | |
Speech quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter buffer | |
Line Echo Cancellation | |
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 | |
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Basic Features |
LEDs for Power, Ready, Status, WAN, PC, FXS |
Dial in mode or dial out mode only | |
Call forward from GSM to VoIP and VoIP to GSM | |
Dial Plan | |
Retransmit GSM Caller ID to VoIP terminal | |
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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 | |
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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 | |
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) |
Power: 12 VDC 2A (110V-220V) (AC/DC adapter included) | |
Warranty: one year | |
Shipping detail:
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