I called the 2 Degrees Call Centre today. I needed to update my email address for the chinwag promotion.
The service was fantastic, but they must be using a VOIP system because the call quality was very poor. There was lots of static/hissing in between our words when someone wasn't speaking.
I'm glad it wasn't a long involved call... but I thought it was worth mentioning so 2 Degrees are aware it also.