In the United States (Orlando area):
I'm helping some else ditch their landline (which was costing $80/month) without loosing contact with 25+ years of family, friends, and businesses.
I want to set up the number on a low-cost / low-maintenance long term service that will effectively just have a custom voicemail greeting to route callers to other numbers.
What I've done so far, anticipating a port to Google Voice:
Ported the landline to a cheap Verizon PrePaid phone.I
On the prepaid phone, I set up a voicemail greeting that explained the number had changed and provided their cell phone numbers.
I've had to buy minutes for the phone regularly to keep the account active.
When I tried to port the number to Google Voice, I get the error: "Ooops! This number appears to be from an area we don't currently support." This means Google Voice doesn't support porting in the area code/prefix combo.
The Question: Can anyone suggest a cheap service (other than Google Voice) to which I can port the number that will allow me to set up a custom voicemail greeting to direct callers, then leave it alone?