Yealink T27G

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
366
Bellcore
Tone
Pattern
ID
Pattern
Cadence
Minimum
Duration
(ms)
Nominal
Duration
(ms)
Maximum
Duration
(ms)
Bellcore-dr1(
standard)
1
Ringing
 2s On
1800
2000
2200
Silent
 4s Off
3600
4000
4400
Bellcore-dr2
2
Ringing
Long
630
800
1025
Silent
315
400
525
Ringing
Long
630
800
1025
Silent
3475
4000
4400
Bellcore-dr3
3
Ringing
Short
315
400
525
Silent
145
200
525
Ringing
Short
315
400
525
Silent
145
200
525
Ringing
Long
630
800
1025
Silent
2975
4000
4400
Bellcore-dr4
4
Ringing
Short
200
300
525
Silent
145
200
525
Ringing
Long
800
1000
1100
Silent
145
200
525
Ringing
Short
200
300
525
Silent
2975
4000
4400
Bellcore-dr5
5
Ringing
450
500
550
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.
Alert-Info: ringtone-N/Alert-Info: ringtone-RingN.wav (or Alert-Info:
MyMelodyN/Alert-Info: MyMelodyRingN.wav)
When the Alter-Info header contains the keyword “ringtone-N/ringtone-RingN” or
“MyMolodyN/MyMelodyRingN”, 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-Ring2.wav