Yealink T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
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Busy Tone Delay Configuration
The following table lists the parameter you can use to configure busy tone delay.
Parameter
features.busy_tone_delay
<y0000000000xx>.cfg
Description
It configures the duration time (in seconds) to play the busy tone when the call is
released by other party.
Permitted
Values
0-0s, the IP phone will not play a busy tone.
3-3s, a busy tone is audible for 3 seconds on the IP phone.
5-5s, a busy tone is audible for 5 seconds on the IP phone
Default
0
Web UI
Features->General Information->Busy Tone Delay (Seconds)
CFG File Version Information
You can customize the version information for the CFG configuration file and then check the version
information via phone/web user interface. With this feature, you can easily know which version of the
CFG configuration file the IP phone is configured.
Topic
CFG File Version Information
CFG File Version Information Configuration
The following table lists the parameter you can use to configure CFG file version information.
Parameter
features.custom_version_info
<y0000000000xx>.cfg
Description
It configures the version information of the CFG configuration file.
After configuration, you can check the configuration file version information at the
path: Menu->Status->CFG Version (phone user interface) or
Status->Status->Version->Configuration Version (web user interface).
Permitted
Values
String
Default
Blank
Media Loopback
The SIP RTP media loopback can be used to make test calls to verify the media path between the phone

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