Newbie question

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mooch49:
I'm contemplating buying the obi 212. But I need some clarification on something. Right now I am using my cable provider(optimum) for my phone service. If I want to keep my phone number using the same service
but just use the obi as a bridge or something like that. See, I want to upgrade my modem. Problem is most of them don't have a phone jack. So in order to keep my service I need some source to use my phone line. Will this device provide that. In other words, I don't want to pay for any VOIP services. I just want the OBI 212 to use as my box for my existing phone service.

SteveInWA:
Hi:

No, that won't work.

Cable company VoIP phone service can only be used with a DOCSIS certified modem/gateway provided by your cable company, or on their list of approved devices.  They do not give out their SIP credentials, and the service runs over their private network.

Comcast, for example, has a list on their website, of all of the approved devices you can buy.  Perhaps Optimum has a similar list, and, perhaps there is a MTA on that list that has a phone jack.

mooch49:
Thanks for responding. The modem I would like to buy is approved by Optimum. But as I said, it doesn't come with a phone jack. So in order to keep my phone service, Im not able to use the OBI as a separate device to use the phone service. Instead, I would have to sign up for another VOIP service. If I decide to do that, is it a difficult process to keep my same number.

SteveInWA:
I'm afraid you don't understand:  you cannot use an OBi device as a substitute for the "phone jack" on your cable-company-supplied MTA.  Cable company phone service is not the same as a typical SIP VoIP service provider.

You can either buy a MTA with a phone jack, or you can port your cable company-issued phone number out, to some other telephone service provider.  If you port it out to a SIP VoIP service provider, then you can set up THAT service on an OBi device.

mooch49:
Ok, I see. I would need to subscribe to a compatible VOIP OBI service provider, then have them transfer my existing number to theirs. Then I would be able to cancel my cable phone service. How long is that process usually?

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