NSN835(P) IP Phone
◆Support SIP 2.0 (RFC3261) and SRTP protocol
◆Support IAX2,iax2 line key call
◆Support 2 SIP lines, the user can register to 2 SIP server at the same time,through a server for  any incoming and outgoing calls
◆Support multiple call queuing
◆Speech coding support: Codec:G.711A/u, G.723.1 high/low, G.729a/b, G.722.1,G.726,AMR
◆Support HD voice
◆Echo cancellation:Support G.168, Hands-free can achieve 96 ms echo cancellation
◆Support Voice Gain Setting, VAD, CNG
◆Support for hands-free full-duplex communication
◆SIP support SIP domain, SIP authentication (none, basic, MD5) domain name resolution, peer IP calls
◆DTMF support: SIP info, DTMF Relay, RFC2833
◆Support 9 systems ringtones and three user-defined ringtones
◆Large screen LCD  display screen with all soft function keys more easier.
◆Support headphone interface(RJ9)
◆Customizable multinational language versions, English is the default
◆SIP application: Support call forward/transfer(Turn blind/attend transfer/signalling transfer)/ On hold/call waiting/three-way calling/ paging and intercom/Call Park / grab pick / Barge / Auto Callback / Click to Call / secondary dial automatically/Blf/ Presence/ SRTP/ SMS
◆Flexible call control functions:; flexible dialing, support hotline number, Empty calling reject, reject blacklist, authentication call, white list, limit dial, DND, hands-free auto-answer, caller ID (reject anonymous calls ), anonymous calls, no registration call etc.
◆Support received calls / missed calls / dialed calls each record 100
◆Support 500 phone book records
◆Support XML phonebook/browser
◆Support Speed Dial
◆With IP PBX / IMS service code calls configuration operations
◆Support web click to dial the phone book
◆Speech coding based on SIP line configuration
◆Support keyboard lock, the emergency call number and keyboard lock condition
◆Headphones, hands-free ringing
◆Support POE power supply (optional)
network characteristic
◆WAN/LAN: Support the bridge mode and NAT
◆Bridge model support the hub
◆Support PPPoE for xDSL
◆Support PoE(optional)
◆Support VLAN (VoIP vlan/data vlan)
◆QoS with DiffServ
◆Support 802.1x
◆Support basic NAT and NAPT
◆Support STUN
◆WAN port support DHCP Client
◆LAN port support DHCP Server
◆WAN port support the main from the DNS server functions
◆Support DNS Relay
◆Support openVPN
◆Support SNTP Client
◆Support the firewall
◆Support VPN L2TP
◆Support DMZ
◆Support network tool: including ping,trace route,telnet client
 
Management and maintenance
◆Management through Web, Telnet configuration and keyboard operation
◆Support user privilege management
◆Support safe mode, and can be a software update in safe mode
◆Support HTTP/HTTPS,FTP,TFTP (and other ways to update software or configuration file)
◆Support dhcp option66 automatic updates
◆Telnet remote management support file uploads and downloads to improve the reliability of safe mode
◆Supports automatic upgrade, can automatically update the version or configuration file
◆View the system log
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Shenzhen Guowei Cesller Technology Co., Ltd., founded in 1996, is one of the largest manufacturers of professional group phone system in China.

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Shenzhen Guowei Cesller Technology Co.,Ltd.

4/F,Building A,Hytera Science Park,No.3,Baolong 4 Rd,Longgang,Shenzhen,China

  • +86-755-6136-3900
  • scb@cesller.com.cn
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  • Belinda Lee:+86 13670115548
  • Lanny Liu:+86 15013708905