Yealink T27P Administrator's Guide

Administrator’s Guide for SIP-T2_Series_T4_Series IP Phones
286
Value of N
Ring Tone
7
Ring7.wav
8
Ring8.wav
9
Silent.wav
10
Splash.wav
N<1 or N>10
Ring1.wav
 When the Alert-Info header contains a remote URL, the IP phone will try to
download the WAV ring tone file from the URL and then play the remote ring tone if
the parameter “account.X.alert_info_url_enable” is set to 1 (or the item called
“Distinctive Ring Tones” on the web user interface is Enabled), or play the
preconfigured local ring tone in about ten seconds if the parameter
“account.X.alert_info_url_enable” is set to 0 or if the IP phone fails to download the
remote ring tone.
Example:
Alert-Info: http://192.168.0.12:8080/Custom.wav
 When the Alert-Info header contains an info text, the IP phone will map the text with
the internal ringer text preconfigured on the IP phone, and then play the ring tone
associated with the internal ringer text. If no internal ringer text maps, the IP phone
will play the preconfigured local ring tone in about ten seconds.
Example:
Alert-Info: info=family;x-line-id=0
Auto Answer
If the Alert-Info header contains the following type of strings, the IP phone will answer
incoming calls automatically without playing the ring tone:
 Alert-Info: Auto Answer
 Alert-Info: info = alert-autoanswer
 Alert-Info: answer-after = 0 (or Alert-Info: Answer-After = 0)
Note
If the Alert-Info header contains multiple types of keywords, the IP phone will process the
keywords in the following order：
AutoAnswer>URL>“Bellcore-drN/ringtone-N/MyMelodyN”>info text.

Yealink T27P Specifications

General

Wall Mountable	Yes
Local Phonebook	1000 entries
Bluetooth	No
Wi-Fi	No
Gigabit Ethernet	No
Display	3.66" 240x120 pixel graphical LCD with backlight
Audio Features	HD voice, Full-duplex speakerphone
Network	Dual-port 10/100 Ethernet switch
Protocols	SIP v1 (RFC2543), v2 (RFC3261)
Power	IEEE 802.3af PoE
Connectivity	2 x RJ45 10/100M Ethernet ports
Voice Codecs	G.711(A/μ), G.722, G.723, G.729AB, G.726
EHS	Supports EHS with Plantronics headsets
Headset Port	Yes
Power Adapter	5V DC (optional)