On 12/13/12 2:02 PM, Vivek Singla wrote:
> Hi,
> I have a call flow where the Invite is sent using content header :
> application/isup.
> In the message body IAM is present.
> I get back 180 ringing, 183 call progress and also 200ok with the ISUP
> messages in the message body.
>
> But when I get the BYE, this BYE does not have the ISUP message body. This
> message does not have any
> content header.
>
> My server discards this BYE message.
>
> Is that ok?
No, it is not ok to discard the BYE message, assuming it is otherwise
correctly formed. Regardless of the presence or absence of the ISUP body
it still terminates the dialog. If you discard it then you will be
maintaining the dialog when the other end thinks it is gone.
I'm not knowledgeable about the isup extensions. So I don't know if
something bad has been done by not including an ISUP body in the BYE.
But in any case you should take appropriate action to end the ISUP
connection, because there is no longer any SIP connection.
Thanks,
Paul
_______________________________________________
Sip-implementors mailing list
[email protected]
https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
