Configuring Advanced Features
335
server will function as a UAC. The session expiration is negotiated via the Session-Expires header
in the INVITE message. The negotiated refresher is always the UAC and it will send an UPDATE
request at the negotiated session expiration. The value “refresher=uac” included in the UPDATE
message means that the UAC performs the refresh.
Example of UPDATE message (UAC mode):
UPDATE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 10.10.20.32:5060;branch=z9hG4bK2104991394
From: "10111" <sip:[email protected]:5060>;tag=2170397024
To: <sip:[email protected]:5060>;tag=200382096
Call-ID: [email protected]
CSeq: 2 UPDATE
Contact: <sip:[email protected]:5060>
Max-Forwards: 70
User-Agent: Yealink T58 58.80.0.5
Session-Expires: 90;refresher=uac
Supported: timer
Content-Length: 0
Procedure
Session timer can be configured using the following methods.
Central Provisioning
(Configuration File)
<MAC>.cfg
Configure session timer.
Parameters:
account.X.session_timer.enable
account.X.session_timer.expires
account.X.session_timer.refresher
Web User Interface
Configure session timer.
Navigate to
:
http://<phoneIPAddress>/servlet?m
=mod_data&p=account-adv&q=loa
d&acc=0
Details of Configuration Parameters:
Parameters
Permitted
Values
Default
account.X.session_timer.enable
0 or 1
0
Description:
Enables or disables the session timer for account X.
0
-Disabled
Содержание CP969
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