Yealink T40G Administrator's Guide

Audio Features
395
Description
It configures the volume of the DTMF tone (in db).
Permitted
Values
Integer from -33 to 0
Default
-10
Parameter
features.dtmf.min_interval
<y0000000000xx>.cfg
Description
It configures the minimum inter-digit time (in milliseconds) between digits when a
sequence of DTMF tones is played out automatically.
Permitted
Values
Integer from 0 to 300
Default
50
[1]
X is the account ID. For T54S/T48S/T48G/T46S/T46G/T29G, X=1-16; for T52S/T42G/T42S, X=1-12; for
T41P/T41S/T27P/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21(P) E2, X=1-2; for T19(P) E2, X=1.
[2]
If you change this parameter, the IP phone will reboot to make the change take effect.
Suppress DTMF Display
Suppress DTMF display allows IP phones to suppress the display of DTMF digits during an active call.
DTMF digits are displayed as “*” on the LCD screen. Suppress DTMF display delay defines whether to
display the DTMF digits for a short period of time before displaying as “*”.
Topic
Suppress DTMF Display Configuration
Suppress DTMF Display Configuration
The following table lists the parameters you can use to configure the suppress DTMF display.
Parameter
features.dtmf.hide
<y0000000000xx>.cfg
Description
It enables or disables the IP phone to suppress the display of DTMF digits during an
active call.
Permitted
Values
0-Disabled
1-Enabled, the DTMF digits are displayed as asterisks.
Default
0
Web UI
Features->General Information->Suppress DTMF Display
Parameter
features.dtmf.hide_delay
<y0000000000xx>.cfg
Description
It enables or disables the IP phone to display the DTMF digits for a short period before
displaying asterisks during an active call.

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