Yealink T21PE2 User Manual

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
338
Bellcore Tone
Pattern
ID
Pattern Cadence
Minimum Duration
(ms)
Nominal Duration
(ms)
Maximum Duration
(ms)
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
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: MyMelodyRing2.wav
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:

Yealink T21PE2 Specifications

General

Brand	Yealink
Model	T21PE2
Category	IP Phone
Language	English