Yealink SIP-T38G Administrator's Guide

Table of Contents
ix
Incoming Intercom Calls ...................................................................................................... 118
Configuring Advanced Features...........................................121
Distinctive Ring Tones .................................................................................................................. 121
Tones ............................................................................................................................................. 123
Remote Phonebook ..................................................................................................................... 126
LDAP .............................................................................................................................................. 128
Busy Lamp Field ........................................................................................................................... 131
BLF List .......................................................................................................................................... 134
Shared Call Appearance ........................................................................................................... 136
As-Feature-Event ......................................................................................................................... 139
Automatic Call Distribution ......................................................................................................... 140
Message Waiting Indicator ........................................................................................................ 141
Call Recording ............................................................................................................................. 143
Hot Desking .................................................................................................................................. 147
Action URL .................................................................................................................................... 148
Action URI ..................................................................................................................................... 151
Server Redundancy ..................................................................................................................... 154
LLDP ............................................................................................................................................... 157
VLAN ............................................................................................................................................. 160
VPN ................................................................................................................................................ 163
Quality of Service ........................................................................................................................ 165
Network Address Translation ..................................................................................................... 168
802.1X Authentication ................................................................................................................. 170
Configuring Audio Features ..................................................173
Audio Codecs .............................................................................................................................. 173
Acoustic Clarity Technology ........................................................................................................ 177
Acoustic Echo Cancellation ................................................................................................. 177
Voice Activity Detection ....................................................................................................... 178
Comfort Noise Generation .................................................................................................. 179
Jitter Buffer ............................................................................................................................ 180
Configuring Security Features ...............................................183
Transport Layer Security .............................................................................................................. 183
Secure Real-Time Transport Protocol .......................................................................................... 189
Encrypting Configuration Files ................................................................................................... 191
Upgrading the Firmware .......................................................195
Resource Files ........................................................................199

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