Early Media; Acoustic Clarity Technology - Alcatel-Lucent ALE M3 Administrator's Manual

iLBC_15_2kpbs
iLBC_13_33kpbs
opus
7.8.2 PTime Configuration
The following table lists the parameter you can use to configure the PTime.
Note: X means account ID and it can be number 1~8 for M3/M5/M7, 1-20 for M8.
Parameter AccountXPtime
It configures array of RTP packet interval (in ms) of 6 codecs
(PCMU/PCMA/G729AB/G722/ILBC/OPUS) in sequence for certain account.
Description
X means account ID and can be 1~8 for M3/M5/M7.
10
20
30
Permitted
Values
40
50
60
Default 20;20;20;20;20;20
Account → Codec → Ptime
Web UI

7.9 Early Media

The early media refers to the media played to the caller before a SIP call is actually established. Current
implementation supports early media through the 183 message. When the caller receives a 183 message
with SDP before the call is established, a media channel is established. This channel is used to provide the
early media stream for the caller.

7.10 Acoustic Clarity Technology

To optimize the audio quality of your network, the ALE Myriad Series phones support the acoustic clarity
technology: Acoustic Echo Cancellation (AEC), Background Noise Suppression (BNS), Automatic Gain
Control (AGC), Voice Activity Detection (VAD), Comfort Noise Generation (CNG) and jitter buffer.
7.10.1 Acoustic Echo Cancellation (AEC)
The ALE Myriad Series phones employ advanced AEC for hands-free operation. The AEC feature can
remove the echo of the local loudspeaker from the local microphone without removing the near-end speech.
7.10.2 Noise Suppression
The impact noise in the room is picked-up, including paper rustling, coffee mugs, coughing, typing, and
silverware striking plates. These noises, when transmitted to remote participants, can be very distracting. It is
enabled on the ALE Myriad Series phones by default.
7.10.3 Background Noise Suppression (BNS)
Background noise suppression (BNS) is designed primarily for hands-free operation and reduces
background noise to enhance communication in noisy environments.
ALE M3-M5-M7-M8 DeskPhones Administrator Guide
20ms, 40ms, 60ms
30ms, 60ms
10ms 20ms
config.xml
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