Yealink T54S

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
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Alert-Info: info=info text;x-line-id=0
When the Alert-Info header contains an info text, the IP phone will map the text with the Internal Ringer
Text preconfigured (or “ distinctive_ring_tones.alert_info.X.text ” is configured) on the IP phone, and then
play the ring tone associated with the Internal Ringer Text (the ring tone can be configured by the
parameter “ distinctive_ring_tones.alert_info.X.ringer ”). If no internal ringer text maps, the IP phone will
play the preconfigured local ring tone in about 10 seconds.
Example:
Alert-Info: info=family;x-line-id=0
Alert-Info: <http://10.1.0.31>;info=family
Alert-Info: <http://10.1.0.31>;info=family;x-line-id=0
Auto Answer
If the INVITE request 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)
 Alert-Info: Intercom
If enable auto answer tone feature is enabled, the phone plays a warning tone to alert you before
answering the incoming call.
Related Topic
Auto Answer
Distinctive Ring Tones Configuration
The following table lists the parameters you can use to configure distinctive ring tones.
Parameter
account.X.alert_info_url_enable
[1]
<MAC>.cfg
Description
It enables or disables the IP phone to download the ring tone from the URL contained
in the Alert-Info header.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Web UI
Account->Advanced->Distinctive Ring Tones
Parameter
features.alert_info_tone
<y0000000000xx>.cfg