Yealink SIP-T46G Administrator's Manual page 128

Administrator's Guide for SIP-T46G IP Phone
appropriate ring tone.
The Alert-Info header is in the following two formats:
Alert-Info: localIP/Bellcore-drN
Alert-Info: <URL>;info=info text;x-line-id=0

Note
―Bellcore-dr5‖ is a ring splash tone that reminds the user that DND or Always Call
Forward feature is enabled on the server-side.
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If the Alter-Info header contains the keyword ―Bellcore-drN‖, the IP phone will play
the Bellcore-drN ring tone (N=1,2,3,4,5).
Example:
Alert-Info: http://127.0.0.1/Bellcore-dr1
The following table identifies the different Bellcore ring tone patterns and
cadences.
Bellcore Pattern
Tone ID
Bellcore-dr1
1
(standard)
Bellcore-dr2 2
Bellcore-dr3 3
Bellcore-dr4 4
Bellcore-dr5 5
Minimum
Pattern Cadence Duration
(ms)
Ringing 2s On 1800
Silent 4s Off 3600
Ringing Long 630
Silent 315
Ringing Long 630
Silent 3475
Ringing Short 315
Silent 145
Ringing Short 315
Silent 145
Ringing Long 630
Silent 2975
Ringing Short 200
Silent 145
Ringing Long 800
Silent 145
Ringing Short 200
Silent 2975
Ringing 450
Nominal Maximum
Duration Duration
(ms) (ms)
2000 2200
4000 4400
800 1025
400 525
800 1025
4000 4400
400 525
200 525
400 525
200 525
800 1025
4000 4400
300 525
200 525
1000 1100
200 525
300 525
4000 4400
500 550