Hello, 

does anyone have any ideas regarding this issue ? 

Many thanks for any tips you may have. 

Kind regards, 
Giuseppe ----- Messaggio inoltrato -----

> Da: "Giuseppe Cardone" <[email protected]>
> A: [email protected]
> Inviato: Giovedì, 10 luglio 2014 15:11:54
> Oggetto: PRACK Interworking with OpenSIPs

> Hello,

> I am trying OpenSIPs and would like to figure out if I can use it to
> perform sip interworking between two UA's, one requiring PRACK and
> another that doesn't support it.

> In essence when OpenSIPs receives a 18x response with headers
> "Required: 100rel" and "RSeq" from the called party, it should
> initiate a PRACK request towards the called party itself, but, as
> you might expect from a proxy, I don't see any function to do this.
> However, maybe someone with a better understanding of OpenSIPs can
> tell me if it is available.

> The b2bua module is were I was placing my hopes. However, here too I
> cannot see a way to initiate a PRACK request, or any request apart
> from an INVITE (using the 'bridge' action) or a BYE (using the
> 'end_dialog_leg').

> Can anyone confirm whethere my conclusions on PRACK interworking with
> OpenSIPs are correct and/or provide any ideas as to how this may be
> accomplished ?

> Many thanks,

> Giuseppe
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