离岸价格
获取最新报价1690 ~ 1690.1 / Piece ( Negotiable )
|1 Piece Minimum Order
联系人 Ms. Hazel
Huabianling, Huizhou, Guangdong
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Basic Features |
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 gateway gsm |
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Retransmit GSM Caller ID to VoIP terminal |
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voice over ip telephone |
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Enhanced Features |
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 gateway gsm |
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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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voice over ip telephone |
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Supported Standards |
ITU: H.**3 V4, H.**5, H.**5, H.**5, H.**0 |
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RFC ***9 - RTP/RTCP |
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RFC ***7 -SDP |
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RFC ***3 - RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals |
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RFC ***6 - SIP INFO Method |
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RFC ***1 - SIP |
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RFC ***4 - Offer/Answer model with SDP |
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RFC ***5 - SIP REFER Method |
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RFC ***2 - A Message Summary and Message Waiting Indicator |
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RFC ***9 - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs) |
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RFC ***1 - SIP "Replaces" Header |
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RFC ***2 - SIP Referred-By Mechanism |
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draft-ietf-sipping-cc-transfer**4 - Session Initiation Protocol Call Control Transfer |
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Codec: G.**1 (A/µ law), G.**9A/B, G.**3.1 |
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DTMF: RFC ***3, In-band DTMF, SIP INFO |
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Operating temperature: *0°C to *0°C (*0°F to **4°F) |
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| 国家: | China |
| 型号: | - |
| 离岸价格: | 1690 ~ 1690.1 / Piece ( Negotiable ) 获取最新报价 |
| 位置: | - |
| 最小订单价格: | 1690 per Piece |
| 最小订单: | 1 Piece |
| 包装细节: | Packaging Detail: 5 kg |
| 交货时间: | within 3 days |
| 供应能力: | 10000 Piece per Month |
| 付款方式: | T/T, Western Union, Money Gram |
| 產品組 : | GoIP |
