Yealink SIP-T5 Series, Administrator'S Manual

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Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Description It enables or disables the phone to disable the account whose username is empty.
Permitted
Values
0-Disabled
1-Enabled
Default 0
Parameter account.X.register_expires_overlap
[1]
<MAC>.cfg
Description It configures the renewal time (in seconds) away from the registration lease.
Permitted
Values
Positive integer and -1
Default -1
Parameter account.X.subscribe_expires_overlap
[1]
<MAC>.cfg
Description It configures the renewal time (in seconds) away from the subscription lease.
Permitted
Values
Positive integer and -1
Default -1
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42G/T42U/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; for T19(P) E2/CP920, X=1.
[2]
If you change this parameter, the phone will reboot to make the change take effect.
Outbound Proxy in Dialog
An outbound proxy server can receive all initiating request messages and route them to the designated destination.
If the device is configured to use an outbound proxy server within a dialog, all SIP request messages from the
device will be sent to the outbound proxy server as a mandatory requirement.
Note : To use this feature, make sure the outbound server has been correctly configured on the device. For more information
on how to configure the outbound server, refer to
Server Redundancy
.
Topic
Outbound Proxy in Dialog Configuration
Outbound Proxy in Dialog Configuration
The following table lists the parameter you can use to configure the outbound proxy in dialog.
Parameter sip.use_out_bound_in_dialog <y0000000000xx>.cfg
Description
It enables or disables the phone to send all SIP requests to the outbound proxy server mandatorily in
a dialog.
Note: It works only if “account.X.outbound_proxy_enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled, only the new SIP request messages from the phone will be sent to the outbound proxy
server in a dialog.
1-Enabled, all the SIP request messages from the phone will be sent to the outbound proxy server in
a dialog.
Default 0
Web UI Features > General Information > Use Outbound Proxy In Dialog