Yealink SIP-T21 E2

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
440
Procedure
Call hold can be configured using the following methods.
Central Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure the call hold tone and
call hold tone delay.
Parameters:
features.play_hold_tone.enable
features.play_hold_tone.delay
Specify whether RFC 2543
(c=0.0.0.0) outgoing hold signaling
is used.
Parameter:
sip.rfc2543_hold
<MAC>.cfg
Specify whether to use inactive
hold signaling.
Parameter:
account.X.hold_use_inactive
Web User Interface
Configure the call hold tone and
call hold tone delay.
Specify whether RFC 2543
(c=0.0.0.0) outgoing hold signaling
is used.
Navigate to:
http://<phoneIPAddress>/servlet?
p=features-general&q=load
Details of Configuration Parameters:
Parameters
Permitted Values
Default
features.play_hold_tone.enable
0 or 1
1
Description:
Enables or disables the IP phone to play a warning tone when there is a call on hold.
0-Disabled
1-Enabled
Web User Interface:
Features->General Information->Play Hold Tone
Phone User Interface: