[schleck8]

You can't DDoS a phone number can you? Maybe their website but google snippets should cache the number

[viraptor]

I can't tell if you're missing the point or trolling, but just in case: There's only a limited number of people in the call centre. By overwhelming the queue, you prevent others reaching the service.

[pixl97]

A huge number of companies use VOIP so in theory, ya you can if you know the servers IP.