Yealink SIP-T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
309
Description
It configures a domain name to be used for the next SRV query in NAPTR record X.
Permitted
Values
Domain name
Default
Blank
Parameter
dns_cache_naptr.X.service
[2]
<y0000000000xx>.cfg
Description
It configures the transport protocol available for the SIP server in NAPTR record X.
Permitted
Values
SIP+D2U-SIP over UDP
SIP+D2T-SIP over TCP
SIPS+D2T-SIPS over TLS
Default
Blank
Parameter
dns_cache_naptr.X.ttl
[2]
<y0000000000xx>.cfg
Description
It configures the time interval (in seconds) that NAPTR record X may be cached before the record
should be consulted again.
Permitted
Values
Integer from 30 to 2147483647
Default
300
Parameter
dns_cache_srv.X.name
[2]
<y0000000000xx>.cfg
Description
It configures the domain name in SRV record X.
Permitted
Values
Domain name
Default
Blank
Parameter
dns_cache_srv.X.port
[2]
<y0000000000xx>.cfg
Description
It configures the port to be used in SRV record X.
Permitted
Values
Integer from 0 to 65535
Default
0
Parameter
dns_cache_srv.X.priority
[2]
<y0000000000xx>.cfg
Description
It configures the priority for the target host in SRV record X.
Lower priority is more preferred.
Permitted
Values
Integer from 0 to 65535
Default
0
Parameter
dns_cache_srv.X.target
[2]
<y0000000000xx>.cfg
Description
It configures the domain name of the target host for an A query in SRV record X.
Permitted
Values
Domain name
Default
Blank
Parameter
dns_cache_srv.X.weight
[2]
<y0000000000xx>.cfg
Description
It configures the weight of the target host in SRV record X.

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