Yealink T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
228
Permitted
Values
Integer from 0 to 65535
Default
0
Parameter
dns_cache_naptr.X.preference
[2]
<y0000000000xx>.cfg
Description
It configures the preference of NAPTR record X.
NAPTR record with lower preference is more preferred.
Example:
dns_cache_naptr.1.preference = 50
Permitted
Values
Integer from 0 to 65535
Default
0
Parameter
dns_cache_naptr.X.replace
[2]
<y0000000000xx>.cfg
Description
It configures a domain name to be used for the next SRV query in NAPTR record X.
Example:
dns_cache_naptr.1.replace = _sip._tcp.yealink.pbx.com
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.
Example:
dns_cache_naptr.1.service = SIP+D2T
Permitted
Values
SIP+D2U-SIP over UDP
SIP+D2T-SIP over TCP
SIPS+D2T-SIPS over TCP
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.
Example:
dns_cache_naptr.1.ttl = 3600
Permitted
Values
Integer from 30 to 2147483647
Default
300

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