asterisk users - Feb 2008 - SIP proxy/registration for *

Dear List:

Please correct me if I am wrong, but as I understand the requirement to
connect an IP-PBX to the PSTN via a SIP trunking service provider (ITSP), a
SIP proxy service and a SIP registration service are required local to the
IP-PBX.    Does Asterisk include this functionality and/or are there other
open source projects providing these SIP services?

Thanks a bunch!

John
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If you're asking what I think you're asking, yes, Asterisk provides what
you're looking for.

On Sun, February 10, 2008 6:18 pm, John wrote:
> Dear List:
>
> Please correct me if I am wrong, but as I understand the requirement to
> connect an IP-PBX to the PSTN via a SIP trunking service provider (ITSP),
> a
> SIP proxy service and a SIP registration service are required local to the
> IP-PBX.    Does Asterisk include this functionality and/or are there other
> open source projects providing these SIP services?
>
> Thanks a bunch!
>
> John
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