VOIP网关,ATA 1FXS,1FXO

议价
加入意向该GN-2112提供了入门级的IP电话用户卓越的音频质量,丰富的功能,与领先的第三方VoIP供应商互操作性和兼容性,大多数服务提供商。 该GN-2112体积小巧,适用于任何PSTN或无绳电话和传真机,并提供插件的简单和拨号,因此非常适合基本的IP电话用户。 产品特点: • 支持SIP 2.0(RFC 3261),TCP / UDP / IP,RTP / RTCP,HTTP,ICMP,ARP / RARP,DNS,DHCP(客户端和服务器),NTP,PPPoE协议,STUN,UPNP,TFTP等。
所有功能于一身的综合接入设备基于SIP标准的网络数据,语音,传真和PSTN。 该GN-2112采用了高集成度,包括集成路由器,NAT,UPNP,DHCP服务器,1路FXS电话网关,以及用于切换SIP和PSTN网络之间的操作1端口完全可编程的FXO网关。
• 内置路由,NAT,网关和端口转发
• 支持从/到PSTN网络呼叫发起和终止
• 强大的数字信号处理(DSP),以确保卓越的音频质量; 先进的自适应抖动控制 • 和数据包丢失隐藏技术
• 支持各种语音编码,包括G. 711(A律和u律),G 729A / B等。
• 支持来电ID /名称的显示或块,保持,呼叫等待/闪断,呼叫转移,呼叫前转,带 • 和外的带内DTMF,拨号计划,等
• 支持透传传真和T. 38(待定)。
• 支持静音抑制,VAD(语音激活检测),CNG(舒适噪音
• 代),线路回声消除(G. 168)和AGC(自动增益控制)
• 支持标准的加密和身份验证(使用MD5和MD5-SESS DIGEST)
• 支持2层(802.1Q VLAN,802.1p优先级)和第3层的QoS(服务类型,区分服务,MPLS)
• 无需人工操作的防火墙/ NAT的支持自动NAT穿透
• 通过通过TFTP或HTTP内置IVR,Web浏览器或中央配置文件支持设备配置
• 通过TFTP支持固件升级或HTTP使用加密的配置文件。
• 支持成交量放大
• 支持可配置的呼叫进行音
• 超紧凑(钱包大小)和轻便的设计,为旅客伟大的同伴
• 小巧,轻便的通用电源适配器。
The GN-2112 offers the entry-level IP Telephony user superb audio quality, rich functionalities, interoperability with the leading 3rd party VoIP providers, and compatibility with most service providers. The GN-2112 is compact, works with any PSTN or cordless phone and fax machines and offers the simplicity of plug and dial, making it ideal for the basic IP telephony user. Features: • Supports SIP 2.0 (RFC 3261) , TCP/ UDP/ IP, RTP/ RTCP, HTTP, ICMP, ARP/ RARP, DNS, DHCP (both client and server) , NTP, PPPoE, STUN, UPNP, TFTP, etc.
an Internet data, voice, fax and PSTN all-in-one integrated access device based on SIP standard. The GN-2112 features a high-level of integration including an integrated router, NAT, UPNP, DHCP server, 1 port FXS telephone gateway, and 1 port fully programmable FXO gateway for toggling operations between SIP and PSTN networks.
• Built-in router, NAT, Gateway and port forwarding
• Supports call origination and termination from/ to the PSTN network
• Powerful digital signal processing (DSP) to ensure superb audio quality; advanced adaptive jitter control • and packet loss concealment technology
• Support various vocoders including G. 711 (a-law and u-law) , G. 729A/ B etc.
• Support Caller ID/ Name display or block, Hold, Call Waiting/ Flash, Call Transfer, Call Forward, in-band • and out-of-band DTMF, Dial Plans, etc.
• Support fax pass through and T. 38 (Pending) .
• Support Silence Suppression, VAD (Voice Activity Detection) , CNG (Comfort Noise
• Generation) , Line Echo Cancellation (G. 168) , and AGC (Automatic Gain Control)
• Support standard encryption and authentication (DIGEST using MD5 and MD5-sess)
• Support for Layer 2 (802.1Q VLAN, 802.1p) and Layer 3 QoS (ToS, DiffServ, MPLS)
• Support automated NAT traversal without manual manipulation of firewall/ NAT
• Support device configuration via built-in IVR, Web browser or central configuration file through TFTP or HTTP
• Support firmware upgrade via TFTP or HTTP with encrypted configuration files.
• Support volume amplification
• Support configurable Call Progress Tones
• Ultra compact (wallet size) and lightweight design, great companion for travelers
• Compact, lightweight Universal Power adapter.