Yealink SIP-T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
177
Permitted
Values
Integer from 0 to 400
Default
120
Web UI
Settings > Voice > Jitter Buffer > Normal
Parameter
voice.jib.wifi.adaptive <y0000000000xx>.cfg
Description
It configures the type of jitter buffer in the wireless network.
Permitted
Values
0-Fixed
1-Adaptive
Default
1
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T42U, T42S, T41S, T29G,
T27G, CP920
Parameter
voice.jib.wifi.min <y0000000000xx>.cfg
Description
It configures the minimum delay time (in milliseconds) of the jitter buffer in the wireless network.
Note: It works only if “voice.jib.wifi.adaptive” is set to 1 (Adaptive). The value of this parameter should
be less than or equal to that of “voice.jib.wifi.normal”.
Permitted
Values
Integer from 0 to 500
Default
60
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T42U, T42S, T41S, T29G,
T27G, CP920
Parameter
voice.jib.wifi.max <y0000000000xx>.cfg
Description
It configures the maximum delay time (in milliseconds) of the jitter buffer in the wireless network.
Note: It works only if “voice.jib.wifi.adaptive” is set to 1 (Adaptive). The value of this parameter should
be greater than or equal to that of “voice.jib.wifi.normal”.
Permitted
Values
Integer from 0 to 500
Default
500
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T42U, T42S, T41S, T29G,
T27G, CP920
Parameter
voice.jib.wifi.normal <y0000000000xx>.cfg
Description
It configures the normal delay time (in milliseconds) of the jitter buffer in the wireless network.
Note: It works only if “voice.jib.wifi.adaptive” is set to 0 (Fixed). The value of this parameter should be
greater than or equal to that of “voice.jib.wifi.min” and less than or equal to that of “voice.jib.wifi.min”.
Permitted
Values
Integer from 0 to 500
Default
240
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T42U, T42S, T41S, T29G,
T27G, CP920
Smart Noise Block
You can use the Smart Noise Block feature to block out the local noises when there is no speech in a call.
It is only applicable to CP920 phones.

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