Yealink SIP-T38G Administrator's Guide

Administrator’s Guide for SIP-T3xG IP Phones
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Replace Rule Template ............................................................................................................... 199
Dial-now Template ....................................................................................................................... 200
Softkey Layout Template ............................................................................................................. 201
Local Contact File ........................................................................................................................ 203
Remote XML Phonebook ............................................................................................................. 204
Specifying the Access URL of Resource Files ............................................................................ 205
Troubleshooting .....................................................................207
Troubleshooting Methods ........................................................................................................... 207
Viewing Log Files .................................................................................................................. 207
Capturing Packets ................................................................................................................ 209
Enabling the Watch Dog Feature ........................................................................................ 210
Getting Information from Status Indicators ........................................................................ 211
Analyzing Configuration Files ............................................................................................. 211
Troubleshooting Solutions ........................................................................................................... 212
Why is the phone LCD screen blank? ................................................................................. 212
Why can the IP phone not obtain the IP address? ............................................................ 212
Why does the IP phone display ―No Service‖? ................................................................. 213
How can I know the basic information of the IP phone? .................................................. 213
Why can the IP phone not upgrade successfully? ............................................................. 213
Why does the IP phone not display time and date correctly? ......................................... 213
Why do I get poor audio during a call? ............................................................................. 213
What is the difference between a remote phonebook and a local phonebook? ......... 214
What is the difference of user name, register name and display name? ...................... 214
Is there a SIP message that can make the IP phone reboot? .......................................... 214
Why do IP phones use DOB format logo file instead of popular BMP, JPG and so on? 215
What can I do if I forget the administrator password? ..................................................... 215
How to increase the volume on Speaker & on Headset? ................................................ 215
What will happen if I connect both PoE cable and power adapter? Which has the higher
priority? .................................................................................................................................. 215
What is auto provisioning? .................................................................................................. 215
What is PnP? .......................................................................................................................... 215
Why does the IP phone not apply the configuration? ....................................................... 216
What is ―BLF List URI‖ used for?........................................................................................... 216
What do ―on code‖ and ―off code‖ mean? ....................................................................... 216
How to solve the IP conflict problem? ................................................................................ 217
How to reset your phone to factory configurations? ......................................................... 217
Appendix ...............................................................................219
Appendix A: Glossary ................................................................................................................. 219
Appendix B: Time Zones ............................................................................................................. 221
Appendix C: Configuration Parameters .................................................................................... 224
Setting Parameters in Configuration Files .......................................................................... 224

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