Yealink SIP-T38G Administrator's Guide

Table of Contents
xi
Basic and Advanced Parameters ....................................................................................... 224
Audio Features Parameters ................................................................................................. 299
Security Feature Parameters ............................................................................................... 305
Upgrading the Firmware ..................................................................................................... 308
Resource Files ....................................................................................................................... 311
Troubleshooting .................................................................................................................... 316
Configuring DSS Key ............................................................................................................ 317
Appendix D: SIP (Session Initiation Protocol) ............................................................................ 333
RFC and Internet Draft Support .......................................................................................... 333
SIP Request ............................................................................................................................ 334
SIP Header ............................................................................................................................ 335
SIP Responses ....................................................................................................................... 336
SIP Session Description Protocol (SDP) Usage .................................................................. 339
Appendix E: SIP Call Flows ......................................................................................................... 340
Successful Call Setup and Disconnect ............................................................................... 341
Unsuccessful Call Setup—Called User is Busy .................................................................. 343
Unsuccessful Call Setup—Called User Does Not Answer ................................................ 347
Successful Call Setup and Call Hold .................................................................................. 350
Successful Call Setup and Call Waiting ............................................................................. 352
Call Transfer without Consultation ...................................................................................... 357
Call Transfer with Consultation ............................................................................................ 361
Always Call Forward ............................................................................................................ 367
Busy Call Forward ................................................................................................................ 370
No Answer Call Forward ..................................................................................................... 373
Call Conference .................................................................................................................... 376
Appendix F: Sample Configuration File .................................................................................... 381
Index ......................................................................................387

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