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Re: [tlug] VoIP help

On Wed, Oct 18, 2017 at 04:06:27AM +0200, Kalin KOZHUHAROV wrote:
> Since changing provider is kind of impossible, I am left with 3 options:
> 1. Find a device that will replace the FritzBox, say up to EUR300
> 2. Add some kind of gateway/proxy that will register the FritzBox and
> transparently pass all calls to and from provider and can run on cheap
> hardware
> 3. Add inline "packet injector" to return "200 OK" to any REGISTER messages
> For 2, what kind of software do I need? I guess asterisk can be
> configured in such a way, though I couldn't find similar deployment
> setup.

kamailio → It's just a SIP server, unlike
Asterisk, which is a SIP AND multimedia server, and will run on low-end
hardware (Raspberry PI, or any commodity server). It would act as a SIP
proxy between your Fritzbox and the provider but RTP will need to flow
around it.

  Trunk <SIP> kamailio <SIP> Fritzbox
  |                                |
  |                                |

You would probably need to forward the SIP ports through the Fritzbox to
kamailio and use a NATed configuration, unless you have multiple public
IPs. All in all, what you want should be doable using this setup.

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