Yealink SIP-T38G

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