[Serusers] Re: Why Does SER Keep Retransmitting "487 Request Terminated" Messages?
Java Rockx
javarockx at gmail.com
Mon Mar 21 21:29:22 CET 2005
Problem solved - I was not handling ACK messages correctly.
Regards,
Paul
On Mon, 21 Mar 2005 09:36:50 -0500, Java Rockx <javarockx at gmail.com> wrote:
> Hi All.
>
> I don't know if this problem is related to the re-INVITE problem I
> posted yesterday
>
> http://lists.iptel.org/pipermail/serusers/2005-March/016961.html
>
> But it seems that when our Sonus PSTN gateway is invovled in a call
> where the SIP UA sends a CANCEL before the other party answers, that
> ser restransmits 487 messages to the SIP UA.
>
> When dialing SIP->SIP everything works fine, it's just when the Sonus
> GW is being accessed that the problem surfaces.
>
> It appears that everything has been ACKed, so I'm stumped as to what
> is happening here.
>
> The attached call log shows the complete dialog where my Grandstream
> UA dialed a PSTN number and cancelled the call when the other side was
> ringing.
>
> Can anyone give me a pointer as to why this might be?
>
> Regards,
> Paul
>
>
>
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