Yealink SIP-T3 Specifications Page 217
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Configuring Audio Features
201
Acoustic Clarity Technology
Acoustic Echo Cancellation
Acoustic Echo Cancellation (AEC) is used to remove acoustic echo from a voice
communication in order to improve the voice quality. It also increases the capacity
achieved through silence suppression by preventing echo from traveling across a
network. IP phones employ advanced AEC for hands-free operation. Echo cancellation
is achieved using the echo canceller.
Procedure
AEC can be configured using the configuration files or locally.
Configuration File
<y0000000000xx>.cfg
Configure AEC.
For more information, refer to
Acoustic Echo Cancellation on
page 360.
Local
Web User Interface
Configure AEC.
Navigate to:
http://<phoneIPAddress>/servl
et?p=settings-voice&q=load
To configure AEC via web user interface:
1. Click on Settings->Voice.
2. Select the desired value from the pull-down list of ECHO.
3. Click Confirm to accept the change.
- Copyright 2
- Warranty 2
- Declaration of Conformity 2
- CE Mark Warning 2
- WEEE Warning 3
- Customer Feedback 3
- GNU GPL INFORMATION 4
- About This Guide 5
- Summary of Changes 6
- Table of Contents 11
- Table of 13
- Contents 13
- Product Overview 17
- SIP Components 18
- SIP IP Phone Models 19
- SIP-T28P 20
- SIP-T26P 21
- SIP-T22P 22
- SIP-T20P 23
- Phone Features 24
- Codecs and Voice Features 24
- Network Features 24
- Management 24
- Security 25
- Getting Started 27
- 1) Attach the stand: 28
- Getting Started 29
- Verifying Startup 31
- Configuration Methods 32
- Reading Icons 34
- DHCP Option 35
- Auto-negotiation 42
- Half-duplex 42
- Full-duplex 42
- Auto-negotiation 43
- Half-duplex 43
- Full-duplex 43
- Configuring PC Port Mode 45
- Creating Dial Plan 47
- Replace Rule 48
- Block Out 52
- Configuring Basic Features 54
- Daylight Saving Time 64
- field 65
- Softkey Layout 73
- Local Directory 82
- Return Message When DND 97
- Busy Tone Delay 101
- Return Code When Refuse 102
- Early Media 103
- 180 Ring Workaround 103
- Procedure 104
- Use Outbound Proxy in Dialog 105
- SIP Session Timer 106
- Session Timer 107
- Call Hold 109
- Call Forward 111
- Call Transfer 116
- Network Conference 117
- Directed Call Pickup 119
- Group Call Pickup 122
- Dialog-Info Call Pickup 126
- Call Return 128
- Call Park 129
- Web Server Type 130
- RFC 2833 134
- Suppress DTMF Display 137
- Transfer via DTMF 138
- Intercom 139
- Incoming Intercom Calls 140
- Distinctive Ring Tones 143
- Configuring Advanced 147
- Features 147
- Remote Phone Book 149
- LDAP Attributes 152
- Busy Lamp Field 154
- Music on Hold 158
- Automatic Call Distribution 159
- Message Waiting Indicator 161
- Multicast Paging 163
- Receiving RTP Stream 165
- Call Recording 167
- URL Record 168
- Hot Desking 171
- Action URL 172
- Action URI 176
- Server Redundancy 179
- Phone Registration 180
- VLAN Discovery via DHCP 189
- Quality of Service 193
- Voice QoS 194
- SIP QoS 194
- Network Address Translation 196
- 802.1X Authentication 199
- TR-069 Device Management 205
- IPv6 Support 207
- Configuring Audio Features 211
- Dual Headset 212
- Audio Codecs 213
- Packetization Time 214
- Acoustic Clarity Technology 217
- Voice Activity Detection 218
- Comfort Noise Generation 219
- Jitter Buffer 220
- Transport Layer Security 223
- Certificates 225
- Upgrading Firmware 235
- Resource Files 239
- Dial-now Template 240
- Softkey Layout Template 241
- Local Contact File 243
- Remote XML Phone Book 244
- Troubleshooting 247
- Capturing Packets 250
- Enabling Watch Dog Feature 251
- Analyzing Configuration File 252
- Troubleshooting Solutions 253
- Appendix 261
- Appendix B: Time Zones 263
- Static Network Settings 267
- PC Port Transmission Method 271
- PC Port Mode 272
- Dial Plan 274
- Dial-now 275
- Area Code 276
- Contrast 278
- Backlight 279
- User Password 280
- Administrator Password 280
- Phone Lock 280
- Time and Date 282
- Configuration File 286
- ) of DST 286
- Language 287
- Logo Customization 289
- Key as Send 291
- Hotline 292
- Call Log 293
- Missed Call Log 293
- Live Dialpad 294
- Call Waiting 295
- Auto Redial 296
- Auto Answer 297
- Call Completion 297
- Anonymous Call 298
- Anonymous Call Rejection 299
- Do Not Disturb 301
- DND in Phone Mode 302
- DND in Custom Mode 302
- Call Forward in Phone Mode 310
- Always Forward 310
- Busy Forward 311
- No Answer Forward 312
- Call Forward in Custom Mode 314
- Fwd International 318
- Phone Basis 321
- Per-line Basis 322
- Incoming Intercom calls 330
- Sending RTP Stream 347
- Fallback Mode 353
- Failover Mode 353
- TCP or TLS 356
- Internet Port 357
- PC Port 358
- DHCP VLAN Discovery 359
- Audio Feature Parameters 372
- Acoustic Echo Cancellation 376
- Security Feature Parameters 379
- Uploading Certificates 381
- Watch Dog 391
- Configuring DSS Key 392
- Keypad Lock Key 397
- DND Key 397
- Directed Call Pickup Key 398
- Group Call Pickup Key 399
- Call Return Key 401
- Call Park Key 401
- Intercom Key 403
- LDAP Key 404
- BLF Key 404
- ACD Key 406
- Multicast Paging Key 407
- Record Key 408
- URL Record Key 408
- Hot Desking Key 409
- SIP Request 411
- SIP Header 412
- SIP Responses 413
- Appendix E: SIP Call Flows 416
- Always Call Forward 443
- Busy Call Forward 446
- No Answer Call Forward 449
- Call Conference 452
- Network Settings 457
- Dial Plan Settings 457
- #Time Settings 458
- #Auto DST Settings 458
- #Phone Lock 458
- #Language 458
- #Call Waiting 458
- #Hotline 459
- #Web Server Type 459
- #DTMF Suppression 459
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