Yealink W53P

Administrator’s Guide for W60P/W53P/W41P DECT Phones
170
Codec Algorithm Reference Bit Rate Sample Rate Packetization Time
G726-24 G.726 RFC 3551 24 Kbps 8 Ksps 20ms
G726-32 G.726 RFC 3551 32 Kbps 8 Ksps 20ms
G726-40 G.726 RFC 3551 40 Kbps 8 Ksps 20ms
iLBC (only for CP920) iLBC RFC 3952
15.2 Kbps
13.33 Kbps
8 Kps
20ms
30ms
opus opus RFC 6716
8-12 Kbps
16-20 Kbps
28-40 Kbps
48-64 Kbps
64-128 Kbps
8 Ksps
12 Ksps
16 Ksps
24 Ksps
48 Ksps
20ms
Note
The network bandwidth necessary to send the encoded audio is typically 5~10% higher than the bit rate due to pack-
etization overhead. For example, a two-way G.722 audio call at 64 Kbps consumes about 135 Kbps of network bandwidth.
The Opus codec supports various audio bandwidths, defined as follows:
Abbreviation Audio Bandwidth Sample Rate (Effective)
NB (narrowband) 4 kHz 8 kHz
MB (medium-band) 6 kHz 12 kHz
WB (wideband) 8 kHz 16 kHz
SWB (super-wideband) 12 kHz 24 kHz
FB (fullband) 20 kHz 48 kHz
The following table lists the audio codecs supported by each phone model:
Phone Model Supported Audio Codecs Default Audio Codecs
W53P/W60P/W41P
G722, PCMA, PCMU, G729, G726-16, G726-24, G726-32, G726-40, iLBC,
opus
G722, PCMA, PCMU,
G729
Audio Codecs Configuration
The following table lists the parameters you can use to configure the audio codecs.
Parameter
account.X.codec.<payload_type>.enable
[1]
<MAC>.cfg
Description
It enables or disables the specified audio codec.
The name of the audio codec:
g722-G722
pcmu-PCMU