HT系列模拟电话适配器/IAD系列采用全球的技术,提供的各种高性价比的VOIP接入设备。HT系列为所有IP电话用户端提供高清晰的电话音质,丰富完备的功能,与大部分主要第三方VOIP设备提供商互通,并与广大运营商都有良好的兼容性。HT系列产品采用超小型的外观设计,可以PSTN,无线电话和传真机连用,操作简单,可即插即用,是广大IP终端的首选产品
HT502是新一代IP通信方案,具有多功能,性价高,高质量,便操作等特点,适用于普通家庭和旅行者。HT502该产品体积小,音质好,功能性强,市场定价准确,能让广大用户和旅行者最大限度的享受IP通信的方便。
功能&性能
-来电显示, 呼叫等待, 三方会议,呼叫前转和后转
-呼叫转移, 请勿打扰, 语音邮件, MLS 语音应答
-T.38 传真, 可调整性拨号计划, IP直接呼叫
-G.711(a/u-law), G.723.1, G.729A/B, G.729E
-G.726-40/32/24/16 以及 iLBC
SIP over TCP/TLS
功能特性
HT-502 | |
以太网接口 | 2 RJ45 (LAN/WAN) |
NAT/Router | Yes |
DHCP | Client/Server |
FXS Port | 2 |
FXO Port | No |
PSTN 透传接口 | No |
语音邮件显示 | Yes |
语音编码 | G.711(a/?law), iLBC, G.723, G.729A/B/E, G.726, T.38(fax) |
远程配置 | TFTP/HTTP |
电话接口 | 2 FXS 接口, 2 个SIP帐号 |
网络接口 | 双 10M/100 Mbps, RJ-45 |
LED 指示灯 | 电源, WAN, LAN, PHONE1 and PHONE2 |
出厂设置键 | 恢复出厂设置按键 |
Voice over Packet Capabilities | Voice Activity Detection (VAD) with CNG (comfort noise generation) and PLC (packet loss concealment), Dynamic Jitter Buffer, Modem detection & auto-switch to G.711, Packetized Voice Protocol Unit (supports RTP/RTCP and AAL2 protocol), G.168 compliant Echo Cancellation, LEC (line echo cancellation) with NLP |
Voice Compression | G.711 + Annex I (PLC), Annex II (VAD/CNG format) encoder and decoder, G.723.1A, G.726(ADPCM), G.729A/B/E, iLBC G.726 provides proprietary VAD, CNG, and signal power estimation Voice Play Out unit (reordering, fixed and adaptive jitter buffer, clock synchronization), AGC (automatic gain control), Status output, Decoder controlling via voice packet header |
DHCP 服务器端/客户端 | Yes, NAT Router or Switched Mode |
IP传真 | T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through (pending), Fax Datapump V.17, V.19, V.27ter, V.29 for T.38 fax relay |
QoS | Diffserve, TOS, 802.1 P/Q VLAN tagging |
IP 传输 | RTP/RTCP |
DTMF 方案 | Flexible DTMF transmission method, user interface of In-audio, RFC2833, and/or SIP Info |
IP 信令 | SIP (RFC 3261) |
保存 | TFTP, HTTP, HTTPS (pending) |
控制 | TLS/SIPS |
管理 | Syslog support, HTTPS and telnet (pending), remote management using Web browser, Auto/manual provisioning system Support Layer 2 (802.1Q, VLAN, 802.1p), Layer 3 QoS (Tos, DiffSery, MPLS) |
电源 | Output: 12VDC / Input: 100-240 VAC/50-60 Hz |
环境湿度 | Operational: 32°-104°F or 0°-40°C Storage: 10°-130°F / Humidity: 10-90% Non-condensing |
尺寸 (H x W x D)
| 25mm x 115mm x 75mm (when laying flat); 115mm x 25mm x 75mm (standing up) |
Short & long haul | REN3: Up to150 ft on 24 AWG line |
呼叫功能 | Caller ID display or block, Call waiting caller ID, Call waiting/flash, Call transfer, hold, forward, mute, 3-way conferencing |
号码显示 | Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID |
极性反转 / 闪烁 | Yes |
EMC | EN55022/EN55024 and FCC part15 Class B |
安全标准 | UL |
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