“Important – Please be aware that as a customer of iiNet, you are asked to waive the CSG in its entirety for our VoIP based service (iiNetphone or VOIP) due to:

1. The service being classed as a ‘secondary line’
2. Our ability to offer significantly lower call costs for this secondary service

For further information regarding the CSG waiver please call Customer Service on 13 22 58.”

That statement appears near the bottom of this iiNet page: http://www.iinet.net.au/csg.html