NethCTI: doubled DTMF tone using Janus client

[andrea-marchionni]

Using NethCTI with the WebRTC Janus client, If I press
a DTMF once (in the examples I used 0), 2 sending events are generated, and this on both Chrome and Firefox.
On Chrome, however, in the console, the second sending writes me DTMF sent (without any value).

Steps to reproduce

• make a call or receive a call with NethCTI WebRTC client
• open the browser console
• send a DTMF and look at browser console

Expected behavior

One DTMF is sent.

Actual behavior

Every DTMF is doubled, Chrome ignores the second, Firefox instead send both DTMF

[alepolidori]

How to test

• verify the "Expected behavior" described above at the beginning

[nethbot]

in 7.9.2009/nethesis-testing:

• nethcti3-3.24.0-1.3.g56cb042.ns7.noarch.rpm x86_64

[nethbot]

in 7.9.2009/nethesis-updates:

• nethcti3-3.24.1-1.ns7.noarch.rpm x86_64