Configuring Basic Features
441
Parameters
Permitted Values
Default
None
features.play_hold_tone.delay
Integer from 3 to 3600
30
Description:
Configures the interval (in seconds) at which the IP phone play a warning tone when there is
a call on hold.
If it is set to 30 (30s), the IP phone will play a warning tone every 30 seconds when there is a
call on hold.
Note:
It works only if the value of the parameter “features.play_hold_tone.enable” is set to 1
(Enabled).
Web User Interface:
Features->General Information->Play Hold Tone Delay
Phone User Interface:
None
sip.rfc2543_hold
0 or 1
0
Description:
Enables or disables the IP phone to use RFC 2543 (c=0.0.0.0) outgoing hold signaling.
0
-Disabled
1
-Enabled
If it is set to 0 (Disabled), SDP media direction attributes (such as a=sendonly) per RFC 3264
is used when placing a call on hold.
If it is set to 1 (Enabled), SDP media connection address c=0.0.0.0 per RFC 2543 is used
when placing a call on hold.
Web User Interface:
Features->General Information->RFC 2543 Hold
Phone User Interface:
None
account.X.hold_use_inactive
0 or 1
0
Description:
Enables or disables the IP phone to use inactive outgoing hold signaling.
0
-Disabled
1
-Enabled
If it is set to 0 (Disabled), SDP media direction attribute “a=sendonly” is used when placing
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