Yealink SIP-T21 E2

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
xxii
Keep Mute ...................................................................................................................................................................... 542
Intercom .................................................................................................................................................................................... 543
Outgoing Intercom Calls .......................................................................................................................................... 543
Incoming Intercom Calls ........................................................................................................................................... 554
Call Timeout ............................................................................................................................................................................ 557
Ringing Timeout .................................................................................................................................................................... 558
Send user=phone ................................................................................................................................................................. 559
SIP Send MAC ......................................................................................................................................................................... 561
SIP Send Line........................................................................................................................................................................... 563
Reserve # in User Name ..................................................................................................................................................... 565
Password Dial.......................................................................................................................................................................... 567
Unregister When Reboot ................................................................................................................................................... 569
100 Reliable Retransmission ............................................................................................................................................. 571
Reboot in Talking .................................................................................................................................................................. 573
Answer By Hand .................................................................................................................................................................... 574
USB Recording ....................................................................................................................................................................... 575
Call Recording ............................................................................................................................................................... 575
Idle Recording ............................................................................................................................................................... 577
CSTA Control ........................................................................................................................................................................... 578
Quick Login .............................................................................................................................................................................. 580
Cloud .......................................................................................................................................................................................... 581
Configuring Advanced Features ............................................... 583
Remote Phone Book ............................................................................................................................................................ 584
Customizing Remote Phone Book Template File ........................................................................................... 584
Lightweight Directory Access Protocol (LDAP) ......................................................................................................... 591
Busy Lamp Field (BLF) .......................................................................................................................................................... 607
BLF Subscription ........................................................................................................................................................... 607
Visual Alert and Audio Alert for BLF Pickup ..................................................................................................... 611
BLF LED Mode ............................................................................................................................................................... 614
Configuring BLF LED Status and BLF Key Behavior ....................................................................................... 617
Configuring a BLF Key................................................................................................................................................ 629
Busy Lamp Field (BLF) List ................................................................................................................................................. 635
Hide Feature Access Codes ............................................................................................................................................... 643
Automatic Call Distribution (ACD) ................................................................................................................................. 645
Shared Call Appearance (SCA) ......................................................................................................................................... 653
Bridge Lines Appearance (BLA) ....................................................................................................................................... 663
Message Waiting Indicator (MWI) ................................................................................................................................. 667
Short Message Service (SMS) .......................................................................................................................................... 672
Multicast Paging .................................................................................................................................................................... 674
Sending RTP Stream ................................................................................................................................................... 674
Receiving RTP Stream ................................................................................................................................................ 692
Dsskey Recording (Record and URL Record) ............................................................................................................ 698
Hot Desking ............................................................................................................................................................................. 708