Yealink SIP-T38G Administrator's Guide

Appendix
297
The default DSCP value for SIP packets is 26
(Assured Forwarding).
Note: If you change this parameter, the IP
phone will reboot to make the change take
effect.
Format
Integer
Default Value
26
Range
0 to 63
Example
network.qos.signaltos = 30
Parameter-
account.x.nat.nat_traversal
Configuration File
<MAC>.cfg
Description
Enables or disables the NAT traversal for
account X.
X ranges from 1 to 6.
Format
Boolean
Default Value
0
Range
0-Disabled
1-Enabled
Example
account.1.nat.nat_traversal = 1
Parameter-
account.x.nat.stun_server
Configuration File
<MAC>.cfg
Description
Specifies the IP address or the domain
name of the STUN server for account X.
X ranges from 1 to 6.
Format
IP Address or Domain Name
Default Value
Blank
Range
Not Applicable
Example
account.1.nat.stun_server = 192.168.1.20

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