Yealink SIP-T2 SERIES Administrator's Manual page 795

Bellcore Tone
Bellcore-dr5
Note
If the user is waiting for a call, ―Bellcore-dr5‖ is a ring splash tone that reminds the user
that the DND or Always Call Forward feature is enabled on the server side.
2) Alert-Info: ringtone-N (or Alert-Info: MyMelodyN)
When the Alter-Info header contains the keyword ―ringtone-N‖ or ―MyMolodyN‖, the IP
phone will play the corresponding local ring tone (RingN.wav), or play the first local ring
tone (Ring1.wav) in about 10 seconds if ―N‖ is greater than 10 or less than 1.
Examples:
Alert-Info: ringtone-2
Alert-Info: ringtone-2;x-line-id=1
Alert-Info: <http://10.1.0.31>;info=ringtone-2
Alert-Info: <http://127.0.0.1/ringtone-2>
Alert-Info: MyMelody2
Alert-Info: MyMelody2;x-line-id=1
Alert-Info: <http://10.1.0.31>;x-line-id=0;info=MyMelody2
The following table identifies the corresponding local ring tone:
Pattern Cade
Pattern
ID nce
Silent
5 Ringing
Value of N
1
2
3
4
5
6
7
8
9
Configuring Audio Features
Minimum Nominal
Duration Duration
(ms) (ms)
2975 4000
450 500
Ring Tone
Ring1.wav
Ring2.wav
Ring3.wav
Ring4.wav
Ring5.wav
Ring6.wav
Ring7.wav
Ring8.wav
Silent.wav
Maximum
Duration
(ms)
4400
550
773