Yealink SIP-T21 E2 - Page 9

Table of Contents
ix
Advanced Phone Features ....................................................111
Busy Lamp Field (BLF) ..................................................................................................... 111
BLF List ............................................................................................................................... 113
Call Recording .................................................................................................................. 115
Hot Desking ...................................................................................................................... 117
Intercom ............................................................................................................................ 118
Outgoing Intercom Calls .............................................................................................. 118
Incoming Intercom Calls .............................................................................................. 119
Using Intercom .............................................................................................................. 121
Multicast Paging ............................................................................................................... 121
Sending RTP Stream ..................................................................................................... 121
Receiving RTP Stream ................................................................................................... 124
Using Multicast Paging ................................................................................................. 125
Music on Hold ................................................................................................................... 127
Automatic Call Distribution (ACD).................................................................................. 127
Shared Call Appearance (SCA) .................................................................................... 129
Configuring SCA Feature on the IP Phone ................................................................. 130
Using SCA Feature on the IP Phone ............................................................................ 136
Bridged Line Appearance (BLA) .................................................................................... 142
Configuring BLA Feature on the IP Phone .................................................................. 143
Using BLA Feature on the IP Phone ............................................................................. 146
Messages .......................................................................................................................... 148
Short Message Service (SMS) .................................................................................... 148
Voice Mail ...................................................................................................................... 151
Message Waiting Indicator (MWI) ............................................................................. 152
Troubleshooting .....................................................................155
General Issues .................................................................................................................. 155
Display Issues ................................................................................................................... 155
Password Issues ................................................................................................................ 156
Call Issues ......................................................................................................................... 157
Headset & Handset Issues .............................................................................................. 157
Audio Issues ...................................................................................................................... 158
Log Issues .......................................................................................................................... 160
Reboot & Upgrade & Reset Issues .................................................................................. 163
Regulatory Notices ................................................................167
Service Agreements ........................................................................................................ 167
Limitations of Liability ...................................................................................................... 167
Safety Instructions ............................................................................................................ 167