Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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to CP860 and CP920 IP phones).
- Basic Features: DND, auto redial, live dialpad, dial plan, hotline, caller identity, auto
answer.
- Advanced Features: BLF, server redundancy, distinctive ring tones, remote phone
book, LDAP.
Codecs and Voice Features
- Wideband codec: G.722, opus (opus is only applicable to SIP-
T54S/T52S/T48S/T46S/T42S/T41S/T40P/T40G/T27G/T23P/T23G/T21(P) E2/T19(P)
E2/CP920 IP phones)
- Narrowband codec: G.711, G.726, G.729, iLBC, G723 (G723 is only applicable to SIP-
T54S/T52S/T48G/T48S/T46G/T46S/T42G/T42S/T41P/T41S/T29G/T27G/CP860/CP92
0 IP phones)
- VAD, CNG, AEC, PLC, AJB, AGC
- Full-duplex speakerphone with AEC
- Built in microphone array, 360 degree voice pickup ( applicable to CP860/CP920 IP
phones)
Network Features
- SIP v1 (RFC 2543), v2 (RFC 3261)
- NAT Traversal: STUN, TURN and ICE
- DTMF: INBAND, RFC 2833, SIP INFO
- Proxy mode and peer-to-peer SIP link mode
- IP assignment: Static/DHCP
- VLAN assignment: LLDP/Static/DHCP/CDP
- Bridge mode for PC port (not applicable to CP860/CP920 IP phones)
- HTTP/HTTPS server
- DNS client
- NAT/DHCP server
- IPv6 support
- Wi-Fi (only applicable to SIP-
T54S/T52S/T48G/T48S/T46G/T46S/T42S/T41S/T29G/T27G/CP920 IP phones)
Management
- FTP/TFTP/HTTP/PnP auto-provision
- Configuration: browser/phone/auto-provision
- Direct IP call without SIP proxy
- Dial number via SIP server
- Dial URL via SIP server
- TR-069
Security
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