Yealink T29G Administrator's Guide

Configuring Basic Features
199
Parameters
Permitted Values
Default
Description:
Configures the session timer T2 (in seconds).
T2 represents the maximum retransmit interval for non-INVITE requests and INVITE
responses.
Web User Interface:
Settings->SIP->SIP Session Timer T2 (2~40s)
Phone User Interface:
None
sip.timer_t4
Float from 2.5 to 60
5
Description:
Configures the session timer of T4 (in seconds).
T4 represents the maximum duration a message will remain in the network.
Web User Interface:
Settings->SIP->SIP Session Timer T4 (2.5~60s)
Phone User Interface:
None
To configure session timer via web user interface:
1. Click on Settings->SIP.
2. Enter the desired value in the SIP Session Timer T1 (0.5~10s) field.
The default value is 0.5s.
3. Enter the desired value in the SIP Session Timer T2 (2~40s) field.
The default value is 4s.
4. Enter the desired value in the SIP Session Timer T4 (2.5~60s) field.

Yealink T29G Specifications

General

VoIP Protocols	SIP
PoE Support	Yes (IEEE 802.3af)
Headset Port	RJ9
Bluetooth	No
Weight	1.04 kg
Display	4.3" color display with backlight, 480 x 272 pixels
Line Keys	10 line keys
Ethernet Ports	2 x 10/100/1000 Mbps
Audio Codecs	G.722, G.711, G.729, G.726, iLBC
USB Port	1 x USB 2.0
Expansion Module Support	Yes, supports up to 6 EXP20 expansion modules
EHS	Yes
Supported Protocols	SIP
Operating Temperature	-10~50°C
Humidity	10% to 95% (non-condensing)