Diane,
I just went through this whole process, probably like many others. I submitted a request to Callcentric to port my Comcast number to Callcentric. When I did that, Comcast within a few days raised my bill about $80.00, saying that I no longer had the Triple Play deal or what ever they call it. I called them up and said that I only wanted Internet and TV ( I got it for $79.99 rather than $159). I also said to leave my number active till the end of the billing period which was about 25 days away. I was surprised the next day when Comcast gave me the Internet and TV and then canceled the voice along with my phone number. The number has to be active to port it. I had to call back and get my number reinstated, which took about 2 days. The port went through a few days later and then I canceled the Phone. As an aside, when I reinstated the number, Comcast said it would be ready to use in 2 days. Two days later it was not working, so I called up to find that it had to be activated again which you can do or have them do it.
comcast.com/activateIn looking back, If I had done nothing but port the number and not called anyone, it would have gone better. Once ported and active on Callcentric, I should have then called Comcast to cancel the phone and then negotiated the new deal for internet and tv. I blame myself as much as Comcast. One of their agents along the way saw I had reverted to only internet and tv and canceled my number.
There are many good carriers. I decided on Callcentric, which is not the cheapest, but was easy to setup and does what I need. I now have 3 lines. My main number is the one I ported from Comcast. Then I have 2 free lines which are NY numbers. I have set up one for a dedicated inbound fax to email line which works great, and the other for my second phone line, which spoofs my google voice number. The price I am paying is
E911 - $1.50/month
My ported number $1.95/month
I am on the pay by the minute plan. I will see how the bills are the next few months to decide if I want to buy a plan with minutes included. I do not think my bill should go over $10.00 total per month for the 3 lines.