Yealink SIP-T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
167
Phone Model Supported Audio Codecs
Default Audio
Codecs
CP920
G.722.1c (48kb/s), G.722.1c (32kb/s),
G.722.1c (24kb/s), G.722.1 (24kb/s), G722,
PCMU, PCMA, G729, G726-40, G726-32,
G726-24, G726-16, G723_53, G723_63,
Opus, iLBC_15_2kpbs, iLBC_13_33kpbs
G.722.1c (48kb/s),
G.722.1c (32kb/s),
G.722.1c (24kb/s),
G.722.1 (24kb/s),
G722, PCMU, PCMA,
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 (payload_type) of the audio codec:
g722_1c_48kpbs-G.722.1c (48kb/s) (only for CP920)
g722_1c_32kpbs-G.722.1c (32kb/s) (only for CP920)
g722_1c_24kpbs-G.722.1c (24kb/s) (only for CP920)
g722_1_24kpbs-G.722.1 (24kb/s) (only for CP920)
g722-G722
pcmu-PCMU
pcma-PCMA
g729-G729
g726_16-G726-16
g726_24-G726-24
g726_32-G726-32
g726_40-G726-40
g723_53-G723_53
g723_63-G723_63
opus-Opus
ilbc_15_2kpbs-iLBC_15_2kbps
ilbc_13_33kpbs-iLBC_13_33kbps
Example:
account.1.codec.g722.enable = 1
Note: The name of the audio codec in this parameter should be the correct one as listed in the above
example, otherwise the corresponding configuration will not take effect.
Permitted
Values
0-Disabled
1-Enabled
Default
Default:
When the audio codec is G.722.1c (48kb/s), the default value is 1;
When the audio codec is G.722.1c (32kb/s), the default value is 1;

Yealink SIP-T40G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Wall mountable	Yes
Wi-Fi	No
Security algorithms	AES, HTTPS, SSL/TLS
Networking standards	IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP, TFTP, HTTP, HTTPS
Voice codecs	G.711, G.711a, G.711u, G.722, G.726, G.729ab
RJ-11 ports quantity	1
Ethernet LAN (RJ-45) ports	2
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	1.6 W
Certification	CE, FCC, ISO 9001
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 90 %
Volume control	Digital
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Lines quantity	3 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	3
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	175 mm
Width	212 mm
Height	54 mm