If you're one of the lucky few to have a broadband connection in an area where there's waiting lists, will initiating a change of isp's force you to lose your connection all together and throw you to back onto the waiting list?
The reason I ask, a friend of mine had Vodafone knocking on their door offering them a deal if they changed from Telecom, and there are definitely waiting lists in their area for broadband, heard this from people up the road.
Ragnor: Do not cancel with the old ISP until after the new ISP has completed the takeover of the connection and they should be fine.
This is the really critical part. Other than this the only risk is some sort of significant mistake made either at the new provider or the old and for this type of request it is actually hard to get it wrong as long as the customer does not prematurely cancel.
But mistakes do happen, and once chorus have connected up someone else from the waiting list onto your port they cant really just take them off again. Normally a simple change of ISP is reasonably safe, and if its in Voda's redzone then you should be more concerned about whether you get a real landline or just a voip port on their modem -- both are good but make sure you understand the limitations of each.
One of the ISPs though has to take the blame if you end up going on a waiting list after a simple ISP change, and that would probably result in the offending ISP arranging another form of connection while they are on the waiting list, and them wearing the cost for the difference. That is if they can't get them back off the waiting list. Mistakes do happens, but their are always consequences/costs to mistakes.
The simple answer is that any ISP will turn you down rather than make a guarantee they have no right to make like guaranteeing a connection, If for any reason the connection is unable to be transferred (active or not) you will be placed at the bottom of a waiting list by chorus, This is something no ISP has any right to challenge due to their service contracts.
In short no ISP can ever guarantee a connection and the contracts you are required to agree to for a connection allow for it for this very reason, Under no circumstances would any sales agent want to or be allowed to void this contract.