Detailed Product Description

KT-980 Voip gaterway  series of gateways are innovative gateways that offer a rich set of functionality and superb sound quality. They are fully compatible with SIP industry standard and can interoperate with many other SIP compliant devices and software on the market.

Features

• Support two models: Bridge and Router(NAT&NAPT)
• Network Protocols: TCP/UDP/IP, ICMP, HTTP, DHCP ClientWAN Interface, DHCP ServerLAN Interface, DNS Client, DNS Relay, SNTP, PPPoE, FTP, TFTP
• VoIP Protocols: SIP (RFC2976,RFC3261, RFC3262, RFC3264, RFC3265,RFC3515,RFC3581)
• Voice Codecs: G.711A-law/U-law, G.729A/B, G.726
• Redundancy SIP server (or Gate Keeper): Can auto swap address between two servers address
• NAT transversal: Support STUN client. Can modify SIP register port, HTTP server port, Telnet server port and RTP port
• Support two SIP server synchronously: Can register two different SIP server, and can make a call by either proxy
• Support standard voice features such as numeric Caller ID Display, Call Waiting, Hold, Transfer, Do-Not-disturb, Call Forward, in-band and out-of-band DTMF, Hotline (off hook autodial), ban outgoing
• Support standard encryption and authentication (DIGEST using MD5, MD5-sess)
• Support Silence Suppression, VAD (Voice Activity Detection), CNG (Comfort Noise Generation), Line Echo Cancellation (G.168), and AGC (Automatic Gain Control)
  Provide easy configuration thru manual operation (Web interface or Telnet) or automated centralized configuration file via TFTP or HTTP.
• Support firmware upgrade via TFTP/FTP and HTTP

VOIP PHONE Specifications

Port WAN                                         1  10/100Base T  RJ-45 for LAN
Port LAN                                          1  10/100Base T  RJ-45 for PC  
Port Phone                                       1  RJ11 for phone and FAX
Port Life line                                     1  life line      
Adapter (Input/output/frequency)       100-240VA/12VDC/60Hz/2A  
Power  Consumption                         1.8W-3.5W
Protocol                                            SIP
SDRAM                                            64Mbits  
Flash                                                16Mbits       
Echo cancellation                              G165 16ms    
Operating Temperature                        0-50%                     
Relative Humidity                              -15-65%    

Dimensions                                      180x120x60mm (L x W x H)