[joshaidan]

That's very interesting.

I've seen lots of toll fraud at my work. Often a VoIP device like an Asterisk server or a VoIP phone will be compromised and used to send calls to a premium rate number, usually at a very high call rate. This is their downside, they're exploited by people who want to make a quick buck. And carriers are forced to pay them because they have contracts with their toll trunk providers that all calls sent through those trunks are legitimate calls.

jdee, have you ever had any success prosecuting anyone committing fraud? Wonder if that's even possible.

[jdee]

Some of the offices in our building are serviced and come with telephony systems included. The owner of these offices has been hit with exactly this attack and ended up with a bill for £150k . Nearly ruined his business and the carriers are not at all sympathetic.

I've not heard of a single case where successful prosecution has occurred. I think OFCOM and the police view these attacks against financial institutions as a 'cost of doing business' - if you dont want fraud, dont run a bank - attitude.