Yealink T21PE2 - Page 16

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
10
Alert Tone
331
Alert Tone Configuration
331
Touch Tone
333
Touch Tone Configuration
333
Ring Tones
333
Custom Ringtone Limit
333
Ringtone Configuration
334
Distinctive Ring Tones
336
Supported Alert-Info Headers Format
336
Alert-Info: Bellcore-drN
337
Alert-Info: ringtone-N/Alert-Info: ringtone-RingN.wav (or Alert-Info: MyMelodyN/Alert-Info:
MyMelodyRingN.wav) 338
Alert-Info: <URL>
339
Alert-Info: info=info text;x-line-id=0
339
Distinctive Ring Tones Configuration
340
Ringer Device
341
Ringer Device Configuration
341
Audio Volume
342
Ringer Volume Configuration
342
Sending Volume Configuration
342
Tones
343
Supported Tones
344
Tones Configuration
345
Audio Codecs
349
Supported Audio Codecs
349
Audio Codecs Configuration
351
Packetization Time (PTime)
354
Supported PTime of Audio Codec
354
PTime Configuration
355
Early Media
356
Early Media Configuration
356
Headset Prior
357
Headset Prior Configuration
357
Dual Headset
357
Dual Headset Configuration
358
Acoustic Clarity Technology
358
Acoustic Echo Cancellation (AEC)
358
AEC Configuration
358
Noise Suppression
359
Noise Suppression Configuration
359
Background Noise Suppression (BNS)
359
Automatic Gain Control (AGC)
359
Voice Activity Detection (VAD)
359
VAD Configuration
360
Comfort Noise Generation (CNG)
360