Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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If it is set to 3 (3s) and “features.play_held_tone.delay” is set to 30 (30s), the IP 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
seconds.
Note: It works only if the Music on Hold feature is disabled and “features.play_held_tone.enable” is set to
1 (Enabled).
Permitted
Values
Integer from 3 to 3600
Default 60
Web UI Features->General Information->Held Tone Interval(second)
Parameter phone_setting.hold_or_swap.mode <y0000000000xx>.cfg
Description
It configures the display rule of the Hold/Swap soft key when there are two calls on the phone.
Note: You can also configure the softkey layout feature to display the Hold or Swap soft key.
Permitted
Values
0-Only display the Swap soft key.
1-Only display the Hold soft key.
2-Display the Hold and Swap soft keys.
Default 0
[1]
X is the account ID. For T54S/T48S/T48G/T46S/T46G/T29G, X=1-16; for T52S/T42G/T42S, X=1-12; for T41P/T41S/T27G,
X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21(P) E2, X=1-2.
Music on Hold (MoH) Configuration
When a call is placed on hold, the IP phone will send an INVITE message to the specified MoH server account accord-
ing to the SIP URI. The MoH server account automatically responds to the INVITE message and immediately plays audio
from some source located anywhere (LAN, Internet) to the held party. For more information, refer to draft RFC draft-
worley-service-example.
The following table lists the parameters you can use to configure music on hold.
Parameter
account.X.music_server_uri
[1]
<MAC>.cfg
Description
It configures the address of the Music On Hold server. The URI points to a Music On Hold (MoH) server.
Examples for valid values: <10.1.3.165>, 10.1.3.165, sip:moh@sip.com, <sip:moh@sip.com>, <yealink.-
com> or yealink.com.
Example:
account.1.music_server_uri = sip:moh@sip.com
Note: The DNS query in this parameter only supports A query.
Permitted
Values
SIP URI within 256 characters
Default Blank
Web UI Account->Advanced->Music Server URI
Parameter
account.X.music_on_hold_type
[1]
<MAC>.cfg
Description It configures the way to process Music On Hold when placing an active call on hold.
Permitted
0-Calling the Music On Hold server before holding the call
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