Re: PSTN Gateway service providers

[Tyler Miller Johnson <>]

We operate H.323 gatekeeper service now and are bringing up SIP. I am 
curious what services will be available. There seem to be two options. 
One is simply outsourcing the PRI (not SS7) gateways and PRI themselves, 
and billing back the University in bulk. The other, which I think is 
more interesting, is the idea that a service provider could establish an 
account with individual users on our campus, and bill back DID, local 
and long distance services directly to them, so the University doesn't 
have to fool around with that. The trick is authentication. We would 
still want folks authenticated to the local proxy (or gatekeeper). There 
would have to be a trust relationship between the university proxy and 
the service provider's network, so that the service provider would trust 
that signalling coming from the university is correct. Perhaps the 
university would even charge the service provider for access to its user 
base?

Milijasevic, Ray wrote:
> Are you looking for SIP origination - PSTN termination only? Are you
> looking for PRI or SS7 trunks to interconnect with? What kind of a
> termination device do you have on your end? Do you operate your own
> proxy. I work for Level (3) and we will be offering IP (SIP) origination
> service, this year.
>
> - ray
>
> -----Original Message-----
> From: Tyler Miller Johnson [mailto:] 
> Sent: Friday, August 15, 2003 2:16 PM
> To: VoIP Working Group
> Subject: PSTN Gateway service providers
>
> Is anyone aware of an IP<>PSTN service provider for SIP or H.323. Right 
> now I operate my own gateways and PRIs. I wonder if it might be cheaper 
> to contract that service to a gateway provider.


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