Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series IP Phones
840
The following figure shows the Flash event sent by the IP phone when transmitting DTMF digit
using the RFC 2833 DTMF type:
Procedure
Configuration changes can be performed using the configuration files.
Central Provisioning
(Configuration File)
Configure DTMF send event flash
feature.
Parameter:
features.dtmf.dtmf_flash
Details of Configuration Parameter:
Description:
Enables or disables the IP phone to send Event Flash by transforming the letter E.
0-Disabled
1-Enabled
If it is set to 0 (Disabled), the letter E will be transmitted as DTMF D.
If it is set to 1 (Enabled), the letter E will be transmitted as DTMF Flash.
Note: If you change this parameter, the IP phone will reboot to make the change take effect.
Web User Interface:
None
Phone User Interface:
None
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