Yealink T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
xii
Network Conference Configuration ..................................................................................................................... 349
USB Recording ....................................................................................................................................................................... 350
USB Recording Configuration ................................................................................................................................ 350
Multicast Paging .................................................................................................................................................................... 351
Multicast Paging Group Configuration .............................................................................................................. 351
Multicast Listening Group Configuration .......................................................................................................... 353
Multicast Paging Settings......................................................................................................................................... 354
Audio Features ........................................................................... 359
Alert Tone ................................................................................................................................................................................. 359
Alert Tone Configuration .......................................................................................................................................... 360
Ring Tones ............................................................................................................................................................................... 361
Custom Ringtone Limit.............................................................................................................................................. 362
Ringtone Configuration ............................................................................................................................................ 362
Distinctive Ring Tones ......................................................................................................................................................... 364
Supported Alert-Info Headers Format ................................................................................................................ 364
Distinctive Ring Tones Configuration .................................................................................................................. 368
Ringer Device .......................................................................................................................................................................... 370
Ringer Device Configuration ................................................................................................................................... 370
Audio Volume ......................................................................................................................................................................... 370
Ringer Volume Configuration................................................................................................................................. 371
Sending Volume Configuration ............................................................................................................................. 371
Tones .......................................................................................................................................................................................... 373
Supported Tones ......................................................................................................................................................... 373
Tones Configuration ................................................................................................................................................... 374
Audio Codecs .......................................................................................................................................................................... 379
Supported Audio Codecs ......................................................................................................................................... 379
Audio Codecs Configuration................................................................................................................................... 381
Packetization Time (PTime) ............................................................................................................................................... 383
Supported PTime of Audio Codec ........................................................................................................................ 383
PTime Configuration .................................................................................................................................................. 384
Early Media .............................................................................................................................................................................. 384
Early Media Configuration ....................................................................................................................................... 385
Headset Prior .......................................................................................................................................................................... 385
Headset Prior Configuration ................................................................................................................................... 386
Dual Headset ........................................................................................................................................................................... 386
Dual Headset Configuration ................................................................................................................................... 387
Acoustic Clarity Technology ............................................................................................................................................. 387
Acoustic Echo Cancellation (AEC) ......................................................................................................................... 387
Background Noise Suppression (BNS) ................................................................................................................ 388
Automatic Gain Control (AGC) ............................................................................................................................... 388
Voice Activity Detection (VAD) .............................................................................................................................. 388
Comfort Noise Generation (CNG) ......................................................................................................................... 389

Yealink T40G Specifications

General

SIP Accounts	3
Wall Mountable	Yes
Opus Codec	No
Display	2.3 inch 132x64-pixel graphical LCD
Network	Dual-port Gigabit Ethernet
PoE	Yes
Headset Support	Yes, RJ9 port
Power Adapter	Optional
Voice Codecs	G.722, G.711(A/μ), G.729AB, G.726
Local Phonebook	1000 entries