[Serusers] Re: Why Does SER Keep Retransmitting "487 Request Terminated" Messages?

[Java Rockx]

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
> 
> 
>