Yealink SIP-T21 E2 Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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The following table identifies the corresponding ring tone:
Value of N
Ring Tone
(features.alert_info_tone = 1)
Ring Tone
(features.alert_info_tone = 0)
1
Bellcore-dr1
Ring1.wav
2
Bellcore-dr2
Ring2.wav
3
Bellcore-dr3
Ring3.wav
4
Bellcore-dr4
Ring4.wav
5
Bellcore-dr5
Ring5.wav
6
Ring6.wav
7
Ring7.wav
8
Ring8.wav
9
Silent.wav
10
Splash.wav
N<1 or
N>10
Ring1.wav
Examples:
Alert-Info: http://127.0.0.1/Bellcore-dr1
Alert-Info: test/Bellcore-dr1
Alert-Info: Bellcore-dr1
Alert-Info: Bellcore-dr1;x-line-id=1
Alert-Info: <http://10.1.0.31>;info=Bellcore-dr1
The following table identifies the different Bellcore ring tone patterns and cadences (These ring
tones are designed for the BroadWorks server).
Bellcore Tone
Pattern
ID
Pattern
Cade
nce
Minimum
Duration
(ms)
Nominal
Duration
(ms)
Maximum
Duration
(ms)
Bellcore-
dr1(standard)
1
Ringing
2
s
O
n
1800
2000
2200
Silent
4
s
O
f
f
3600
4000
4400
Bellcore-dr2
2
Ringing
Long
630
800
1025
Silent
315
400
525
Ringing
Long
630
800
1025
Silent
3475
4000
4400

Yealink SIP-T21 E2 Specifications

General

Brand	Yealink
Model	SIP-T21 E2
Category	IP Phone
Language	English