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IP PHONE,VoIP Phone
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IP PHONE,VoIP Phone

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  • Support three SIP servers running at the same time       
  • Provide two backup SIP servers
  • Voice code: G.711A/u, G.723.1 high/low, G.729a/b, G.722, G.726
  • G.168 compliant echo cancellation(64ms/96ms/128ms)
  • VAD (voice active detect)
  • CNG (comfort noise generation)      
  • Support Voice Gain Setting      
  • GSM, AMR, ILBC         
  • Support bridge and routing mode
  • DTMF Sip Info, DTMF Relay, RFC2833
  • Support PPPoE, (used for ADSL, cable modem connecting)
  • VLAN(802.1P802.1Q)
  • Support DMZ, DNS Relay, SNTP Client, Firewall
  • Support network tools: ping, trace route, telnet client
  • Web administration, telnet configuration and keypad operation
  • Support HTTP, FTP, TFTP software upgrade or configure.
  • Hotline,
  • Alarm clock
  • Speed dial
  • Phone book(140 records)
  • Call Forward, Call Transfer, 3-way conference calls
  • Caller ID, Do not Disturb, Blacklist


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Mr. Jimes Huang
Tel: 86-757-86391100
Enter between 20 to 3,000 chatacters.
Contact Method
Guangdong C-tel Sci-tech Development Co., Ltd. (Cirrus)
China (Mainland)
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