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Re: [reSIProcate] RFC3455 <-> RFC7315 support

On 17/12/2019 12:16, Jan Granqvist wrote:
> Hi all,
> We've some issues with a SIP trunk supporting VoLTE.
> On incoming INVITE from the SIP trunk, the SIP stack responds with
> '400 Bad Request(Multiple values in single-value header
> P-Access-Network-Info)'.
> Looking at the offending header(P-Access-Network-Info) in the INVITE
> request, one can see a comma separated value.
> The RFC3455 states that there may only exist one element of
> 'access-net-spec'.
> However, RFC3455 has been superseded by RFC7315(although updated by
> RFC7913), where it now is possible to have 
> multiple elements of 'access-net-spec'.
> I can assume that this requires a small change of re-defining header
> 'PAccessNetworkInfo' to a multi-header.

Would you like to submit a pull request for the change?  We moved to Git
to try to make it easier for people to submit these small fixes.

It could be useful to include a one line code comment with a link to the
section in the most current RFC