Yealink SIP-T21 E2

Configuring Audio Features
821
The ring tone format must meet the following:
Phone Model
Format
Single File Size
Note
SIP-
T54S/T52S/T48S/T46S/T42S/T41
S/T27G
.wav
<=8MB
2MB of space should be
reserved for the phone
SIP-T48G/T46G/T29G
.wav
<=8MB
2.4MB of space should
be reserved for the
phone)
SIP-
T42G/T41P/T40P/T40G/T27P/T23
P/T23G/T21(P) E2/T19(P)
E2/CP860/CP920
.wav
<=100KB
5KB of space should be
reserved for the phone
Note
Procedure
Ring tones can be configured using the following methods.
Central
Provisioning
(Configuration File)
<y0000000000xx>.
cfg
Configure a ring tone for the IP phone.
Parameter:
phone_setting.ring_type
Specify the access URL of the custom ring
tone.
Parameter:
ringtone.url
Delete all custom ring tone files.
Parameter:
ringtone.delete
<MAC>.cfg
Configure a ring tone for the SIP account.
Parameter:
account.X.ringtone.ring_type
Configure a ring tone for the PSTN
account.
Parameter:
pstn.account.X.ring_type
The ring tone file must be PCMU audio format, mono channel, 8K sample rate and 16 bit
resolution.