Richard wants to know if there's an app to call 800 numbers while overseas. Leo says that any app that lets him call phones will work. He'll need an app that supports SIP clients. Skype would if he has a Skype Out account, and that would require putting down a credit of $10 to enable it.
Diane is getting odd phone calls from her VOiP system at work. And the caller ID has only a few digits. Leo says it could be the provider upstream. But with VOIP, she could also have a security issue. Leo recommends finding a consulting IT guy who can lock down her system.