GNEX-188是一种语音通信终端的其基于宽带和独立的PC（个人电脑）。

语音功能
*支持SIP RFC3261
*编解码器：G. 711A / U，G 7231高/低，G 729
*回声消除：支持G. 168和免提可以支持96ms
*支持语音增益设置，抖动缓冲，VAD，CNG，双GK，呼叫转移，以及点对点
* NAT横向：支持STUN客户端，柚子，AVS
* SIP支持SIP域名，SIP认证（none，基本，MD5），服务器的DNS名称，点对点
* SIP支持耻骨与私人服务​​器。 可以连接到公共SIP和私人SIP服务器在同一时间
* SIP支持双公共服务器
* DTMF：支持SIP信息，DTMF继电器，RFC2833
* SIP应用：支持呼叫转移/转让/持有/等待
*呼叫控制功能：灵活的拨号地图，支持热线，电话为空号拒绝服务，黑色名单拒绝验证呼叫，免打扰，来电显示。
*支持电话会议和语音记录
*英语，西班牙语，捷克斯洛伐克替代


网络功能
* WAN / LAN：支持路由和桥接模式
*支持基本的NAT和NAPT
*适用于xDSL支持PPPoE
广域网*支持DHCP客户端
在局域网*支持DHCP服务器
*支持DNS中继，SNTP客户端，防火墙
*在telnet服务器网络工具：包括平，路由跟踪，远程登录客户端

维护与管理
*支持引导监视器
*可通过引导监视固件升级
*可配置通过WEB，键盘，远程登录
*可以通过HTTP升级固件和配置文件，FTP，TFTP
*支持系统日志

GNEX-188 is a kind of voice communication terminal which is based on wide band and independent of PC (personal computer) .

Voice Features
* Support SIP RFC3261
* Codec: G. 711A/ u, G. 7231 high/ low, G. 729
* Echo cancellation: Support G. 168, and Hands-free can support 96ms
* Support Voice Gain Setting, Jitter Buffer, VAD, CNG, dual GK, call forward, and Peer to Peer
* NAT transverse: support STUN client, Citron, AVS
* SIP support SIP domain, SIP authentication (none, basic, MD5) , DNS name of server, Peer to Peer
* SIP support Pubic & Private server. Can connect to public SIP and Private SIP server at the same time
* SIP support dual public server
* DTMF: Support SIP info, DTMF Relay, RFC2833
* SIP application: support Call forward/ transfer/ holding/ waiting
* Call control features: Flexible dial map, support Hotline, Empty calling No. Reject service, Black list for reject authenticated call, No disturb, Caller ID.
* Support conference call and voice record
* English, Spanish, Czechoslovak alternative


Network Features
* WAN/ LAN: Support Bridge and Router model
* Support basic NAT and NAPT
* Support PPPoE for xDSL
* Support DHCP Client on WAN
* Support DHCP Server on LAN
* Support DNS Relay, SNTP Client, Firewall
* Network tools in telnet server: Including ping, trace route, telnet client

Maintenance and Management
* Support Boot Monitor
* Can upgrade firmware through boot monitor
* Can config through Web, keypad, Telnet
* Can upgrade firmware and configuration file through HTTP, FTP, TFTP
* Support Syslog