I want to move my main phone number to Voipfone - the number is currently on a normal landline. Simple enough - except I don't want to cancel my existing landline because that's what I use for internet access.
The porting process only seems to work where the existing service is to be terminated.
My current landline provider has offered to renumber my landline (for a charge) but say they would then release the original number completely and it wouldn't be mine anymore.

The only way I can see around this at the moment would be to have a new landline installed with a new number, transfer my broadband to that, and then cancel/transfer the original landline to get my number over to Voipfone - see like a round-the-houses and probably pretty expensive way to go about this. There must be a better way?
Any thoughts?
Thanks,
David