Yealink SIP-T3 Administrator's Manual page 445

Web UI Features > General Information > Play Hold Tone
Parameter features.play_hold_tone.delay
It configures the time (in seconds) to wait for the phone to play the initial call hold tone.
If it is set to 30 (30s), the phone will wait 30 seconds to play the initial call hold tone after you place a
Description
call on hold.
Note: It works only if "features.play_hold_tone.enable" is set to 1 (Enabled).
Permitted
Integer from 3 to 3600
Values
Default 30
Web UI Features > General Information > Play Hold Tone Delay
Parameter features.play_hold_tone.interval
It configures the time (in seconds) between subsequent call hold tones.
If it is set to 3 (3s) and "features.play_hold_tone.delay" is set to 30 (30s), the phone will begin to play
a hold tone after you place a call on hold for 30 seconds, and repeat the call hold tone every 3
Description
seconds.
Note: It works only if "features.play_hold_tone.enable" is set to 1 (Enabled).
Permitted
Integer from 3 to 3600
Values
Default 30
Web UI Features > General Information > Hold Tone Interval(second)
Parameter features.play_held_tone.enable
Description It enables or disables the phone to play the call held tone when a call is held by the other party.
Permitted
0-Disabled
Values 1-Enabled
Default 0
Web UI Features > General Information > Play Held Tone
Parameter features.play_held_tone.delay
It configures the time (in seconds) to wait for the phone to play the initial call held tone.
If it is set to 30 (30s), the phone will wait 30 seconds to play the initial call held tone after you are held
by the other party.
Description
Note: It works only if the Music on Hold feature is disabled and "features.play_held_tone.enable" is
set to 1 (Enabled).
Permitted
Integer from 3 to 3600
Values
Default 30
Web UI Features > General Information > Play Held Tone Delay
Parameter features.play_held_tone.interval
It configures the time (in seconds) between subsequent call held tones.
Description
If it is set to 3 (3s) and "features.play_held_tone.delay" is set to 30 (30s), the phone will begin to play
a held tone after a call is held by the other party for 30 seconds, and repeat the call held tone every 3
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Call Features
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