James, thanks a los for your prompt response

Sincerely.
Milton

On Fri, Jul 20, 2018 at 3:19 PM <jrbr...@asttechlabs.com> wrote:

> Hi Milton,
>
> RFC 3824 may have the information you are looking for.
>
> Sincerely,
>
> ///////////////////////////////////////////////////
> James R. Bress
> AST Technology Labs Inc.
> Phone: +1-321-254-8118
> Fax: +1-321-254-9511
> 1430 Sarno Rd.
> Melbourne, FL 32935
> USA
> Email: jrbr...@asttechlabs.com
> Website: www.asttechlabs.com
> ///////////////////////////////////////////////////
>
> -----Original Message-----
> From: sip-implementors-boun...@lists.cs.columbia.edu
> <sip-implementors-boun...@lists.cs.columbia.edu> On Behalf Of Rolando
> Sanchez Espada
> Sent: Friday, July 20, 2018 1:44 PM
> To: sip-implementors <sip-implementors@lists.cs.columbia.edu>
> Subject: [Sip-implementors] Number Translation using Voice
>
> Hello there!
>
> Is there any RFC for number translation for VoIP provider to implement.
> let's when the call is initiate inside the VoIP provider network and is
> deliver to the PSTN, it begins with the line port in the FROM field but
> should be traslated to DID at the time it leaves the VoIP network, what
> would be the RFC if exists?
>
> Regards.
> Milton
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> Sip-implementors@lists.cs.columbia.edu
> https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
>
>
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