Shenzhen Kertong Technology CO.,Ltd
Home > Products > IP Gateways > voip gateway KT-989

voip gateway KT-989

— IP Gateways, voip phone
Product Category: IP Gateways
Sales Method: Manufacture
Payment Term: T/T, L/C
Min. Order Unit Price
Contact Info


Address: China (mainland) Guangdong Shenzhen,4F,Decheng Business Bldg, West Segment No.33, Jia an Rd Bao an 41 district
All Products (5)

Product Detail

Product Attribute:

  • China (mainland) More >
  • KT-989
  • 09/04/2009
  • 01/01/2011

Product Content Description:

Support two models: Bridge and Router(NAT&NAPT).
Network Protocols: TCP/UDP/IP, ICMP, HTTP, DHCP Client (WAN
Interface), DHCP Server(LAN Interface), DNS Client, DNS
VoIP Protocols: SIP (RFC3261, RFC3262, RFC3264, RFC3265)
Voice Codecs: G.711(A-law/U-law), G.723.1, G.729A/B, G.726
NAT penetration: Support STUN client, AVS and Citron etc.
Can modify SIP register port, HTTP server port, Telnet
server port and RTP port.
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 and Telnet) or automated centralized
configuration file via TFTP or HTTP.
Support firmware upgrade via TFTP/FTP and HTTP.
Support syslog, can send event of gateway to syslog server.

Send your inquiry to this supplier

- Your message must be between 20-3000 characters.


- jpg, jpeg, gif, txt, doc, pdf, xls, docx,xlsx, rar or zip format;
- Max. size of 2MB