[asterisk-users] Call duration problem or maybe calls not hanging up problem

[Ira]

In the last 10 days I've had 4 calls be charged by my provider at 
exactly 12 hours longer than the call actually lasted. I think this 
as all after upgrading from 1.6.17.1 to 1.6.17.2 but I have no way to 
be sure and it's so random. 2 calls 20 minutes apart last week and 2 
more today many hours apart.

Is anyone else seeing anything like this or have any idea where I might look.

They claim it's me but won't know till the get the SIP logs from 
their provider.  It's almost as if someone is using AM and PM and 
getting them mixed up. When I call Australia the calls always hang up 
right around 30 minutes and the first 2 calls did exactly that and 
were billed for exactly 12:30.

It's annoying because it's expensive and my phones stop working for 
no apparent reason.

Thanks, Ira