Strange "beep" at the end of a call!

[DavidTwister]

Could anyone explain me how can i hush up the strange "3 beep" to the end of a received call? Thank you!;)

[psargent]

It signals that your connection has been lost - if the person you are talking to hangs up first first, your trin will tell you that you lost connection with the beeping, if you hang up first, it will never need to give you that notification.

I looked around in 'sounds and notifications' to try to disable it with no luck. I am not a registry wizard, so I can't help you there - but it seems that a tweak would be the only way to do it.