Yealink SIP-T27P [29/841] Network features

Product Overview

In addition to physical features introduced above, IP phones also support the following

key features when running the latest firmware:

 Phone Features

- Call Options: emergency call, call waiting, call hold, call mute, call forward,

call transfer, call pickup, conference.

- 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

- Narrowband codec: G.711, G.726, G.729, iLBC, G723 (G723 is not applicable to

SIP-T27P, SIP-T23P/G, SIP-T21(P) E2 and SIP-T19(P) E2 IP phones)

- VAD, CNG, AEC, PLC, AJB, AGC

- Full-duplex speakerphone with AEC

 Network Features

- SIP v1 (RFC 2543), v2 (RFC 3261)

- NAT Traversal: STUN mode

- DTMF: INBAND, RFC 2833, SIP INFO

- Proxy mode and peer-to-peer SIP link mode

- IP assignment: Static/DHCP/PPPoE (PPPoE is not applicable to SIP-T42G/T41P IP

phones)

- VLAN assignment: LLDP/Static/DHCP/CDP

- Bridge mode for PC port

- HTTP/HTTPS server

- DNS client

- NAT/DHCP server

- IPv6 support

 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