Use of VOIP for telephone calls.
I use a variety of VOIP services to make International phone calls, some via a computer programme and others via "phone cards". This allows me to make calls for 2.5c/min instead of the 60c/min charged by my NZ telephone provider.
However, I'm occasionally finding that however carefully I dial I get a wrong number.
Is it only me, or do the audio sounds get scrambled so that the incorrect number is identified ?