Yealink SIP-T21 E2

Table of Contents
xxi
Local Directory ....................................................................................................................................................................... 350
Customizing a Local Contact File .......................................................................................................................... 350
Configuring Local Directory .................................................................................................................................... 363
Backing up the Local Contacts ............................................................................................................................... 367
Live Dialpad ............................................................................................................................................................................. 369
Speed Dial ................................................................................................................................................................................ 371
Call Waiting ............................................................................................................................................................................. 379
Auto Redial .............................................................................................................................................................................. 383
Auto Answer ............................................................................................................................................................................ 385
IP Direct Auto Answer ......................................................................................................................................................... 393
Allow IP Call ............................................................................................................................................................................. 394
Accept SIP Trust Server Only ............................................................................................................................................ 395
Call Completion ..................................................................................................................................................................... 397
Anonymous Call ..................................................................................................................................................................... 400
Anonymous Call Rejection ................................................................................................................................................ 405
Do Not Disturb (DND) ......................................................................................................................................................... 409
Busy Tone Delay .................................................................................................................................................................... 426
Return Code When Refuse ................................................................................................................................................ 428
Early Media .............................................................................................................................................................................. 430
180 Ring Workaround ......................................................................................................................................................... 430
Use Outbound Proxy in Dialog ....................................................................................................................................... 431
SIP Session Timer .................................................................................................................................................................. 433
Session Timer .......................................................................................................................................................................... 435
Call Hold ................................................................................................................................................................................... 439
Music on Hold (MoH) ................................................................................................................................................ 443
Call Forward ............................................................................................................................................................................. 445
Call Transfer ............................................................................................................................................................................. 469
Local Conference ................................................................................................................................................................... 471
Network Conference ............................................................................................................................................................ 473
Transfer on Conference Hang Up .................................................................................................................................. 476
Feature Key Synchronization ............................................................................................................................................ 477
Transfer Mode via Dsskey.................................................................................................................................................. 479
Allow Trans Exist Call ........................................................................................................................................................... 480
Directed Call Pickup ............................................................................................................................................................. 482
Group Call Pickup ................................................................................................................................................................. 494
Dialog Info Call Pickup ........................................................................................................................................................ 506
Recent Call In Dialing .......................................................................................................................................................... 509
ReCall ......................................................................................................................................................................................... 510
Call Number Filter ................................................................................................................................................................. 516
Call Park .................................................................................................................................................................................... 518
Calling Line Identification Presentation (CLIP) .......................................................................................................... 532
Connected Line Identification Presentation (COLP) ............................................................................................... 537
Mute ........................................................................................................................................................................................... 540
Allow Mute ..................................................................................................................................................................... 540