Yealink T40G Administrator's Guide

General Features
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Session-Expires: 90;refresher=uac
Supported: timer
Content-Length: 0
Topic
Session Timer Configuration
Session Timer Configuration
The following table lists the parameters you can use to configure session timer.
Parameter
account.X.session_timer.enable
[1]
<MAC>.cfg
Description
It enables or disables the session timer.
Permitted
Values
0-Disabled
1-Enabled, the IP phone will send periodic UPDATE requests to refresh the session
during a call.
Default
0
Web UI
Account->Advanced->Session Timer
Parameter
account.X.session_timer.expires
[1]
<MAC>.cfg
Description
It configures the interval (in seconds) for refreshing the SIP session during a call. For
example, an UPDATE will be sent after 50% of its value has elapsed.
If it is set to 1800 (1800s), the IP phone will refresh the session during a call before 900
seconds.
Example:
account.1.session_timer.expires = 1800
Note: It works only if “account.X.session_timer.enable” is set to 1 (Enabled).
Permitted
Values
Integer from 90 to 7200
Default
1800
Web UI
Account->Advanced->Session Expires(90~7200s)
Parameter
account.X.session_timer.refresher
[1]
<MAC>.cfg
Description
It configures the function of the endpoint who initiates the SIP request.
Note: It works only if “account.X.session_timer.enable” is set to 1 (Enabled).
Permitted
Values
0-UAC
1-UAS

Yealink T40G Specifications

General

SIP Accounts	3
Wall Mountable	Yes
Opus Codec	No
Display	2.3 inch 132x64-pixel graphical LCD
Network	Dual-port Gigabit Ethernet
PoE	Yes
Headset Support	Yes, RJ9 port
Power Adapter	Optional
Voice Codecs	G.722, G.711(A/μ), G.729AB, G.726
Local Phonebook	1000 entries