Yealink SIP-T38G Administrator's Guide

Appendix
259
Range
0-Disabled
1-Enabled
Example
sip.use_out_bound_in_dialog = 0
Parameter-
account.x.advanced.timer_t1
Configuration File
<MAC>.cfg
Description
Configures the SIP session timer T1 (in
seconds) for account X.
T1 is an estimate of the Round Trip Time (RTT)
of transactions between a SIP client and SIP
server.
X ranges from 1 to 6.
Format
Float
Default Value
0.5
Example
account.1.advanced.timer_t1 = 1
Parameter-
account.x.advanced.timer_t2
Configuration File
<MAC>.cfg
Description
Configures the session timer T2 (in seconds)
for account X.
T2 represents the maximum retransmitting
time of any SIP request message. The
re-transmitting and doubling of T1 continues
until the retransmitting time reaches the T2
value.
X ranges from 1 to 6.
Format
Float
Default Value
4
Example
account.1.advanced.timer_t2 = 5
Parameter-
account.x.advanced.timer_t4
Configuration File
<MAC>.cfg
Description
Configures the session timer of T4 (in

Yealink SIP-T38G Specifications

General

Expansion module support	Yes
Ethernet LAN (RJ-45) ports	2
Keypad number of keys	48
Touchscreen	-
Display resolution	480 x 272 pixels
Display number of colors	16.78 million colors
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
Voice codecs	G.711, G.722, G.723.1, G.726
Bluetooth	No
Security algorithms	802.1x RADIUS, HTTPS, SSL/TLS
AC adapter input voltage	100 - 240 V
AC adapter output voltage	5 V
Power consumption (typical)	4.6 W
Operating relative humidity (H-H)	10 - 95 %
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Compliance industry standards	IEEE 802.3af
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	204 mm
Width	273 mm
Height	42 mm
Weight	1050 g