Before long all operators, Wireless and/or cabled, will have to face up to the fact that they are data carriers and adjust the business model appropriately. The difference between Voice and data is long gone and new technologies/protocols are emerging almost daily. They will be chasing their tails and wasting money just policing the traffic for the sake of pretending to be Voice Carriers.
Look at the gadgets hitting the market in the past year, Cellphones, Media Players, TV's, EBooks, Laptops, tablet PC's even cameras all now connect to the internet by 3G, WiFi or Ethernet and carry some combination of Voice, Video, Data, Media etc. The latest gadget, iPad, carries the lot in one box.
Lets drop the old paradigms and get with the 21st century.
What we need is a bandwidth allocation and a Pipe. Let us allocate that bandwidth between, voice, data and media according to our needs and allow us to use it on any network.
After all they do call themselves Network Operators, it is time they started acting as such and dropped the analogue mind set that makes them behave as a telephone operators.
edit: I was surprised that the current survey didn't ask about VoIP, every one I know is useing it in one form or another, and in some cases got ADSL just to use voice.