Yealink T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
230
Values
Default
0
Parameter
dns_cache_srv.X.ttl
[2]
<y0000000000xx>.cfg
Description
It configures the time interval (in seconds) that SRV record X may be cached before
the record should be consulted again.
Example:
dns_cache_srv.1.ttl = 3600
Permitted
Values
Integer from 30 to 2147483647
Default
300
Parameter
dns_cache_a.X.name
[2]
<y0000000000xx>.cfg
Description
It configures the domain name in A record X.
Example:
dns_cache_a.1.name = yealink.pbx.com
Permitted
Values
Domain name
Default
Blank
Parameter
dns_cache_a.X.ip
[2]
<y0000000000xx>.cfg
Description
It configures the IP address that the domain name in A record X maps to.
Example:
dns_cache_a.1.ip = 192.168.1.13
Permitted
Values
IP address
Default
Blank
Parameter
dns_cache_a.X.ttl
[2]
<y0000000000xx>.cfg
Description
It configures the time interval (in seconds) that A record X may be cached before the
record should be consulted again.
Example:
dns_cache_a.1.ttl = 3600
Permitted
Values
Integer from 30 to 2147483647
Default
300
Parameter
static.network.dns.ttl_enable
[3]
<y0000000000xx>.cfg
Description
It enables or disables the phone to use TTL (Time To Live) in the A record.

Yealink T40G Specifications

General

SIP Accounts	3
Wall Mountable	Yes
Opus Codec	No
Display	2.3 inch 132x64-pixel graphical LCD
Network	Dual-port Gigabit Ethernet
PoE	Yes
Headset Support	Yes, RJ9 port
Power Adapter	Optional
Voice Codecs	G.722, G.711(A/μ), G.729AB, G.726
Local Phonebook	1000 entries