[SIPForum-discussion] Which should be the correct behaviour?

[Andrea Puddu]

Thanks everybody very much.
Herve, you are correct.

Furthermore, with one kind of phone I am experiencing this behaviour:

Scenario
1:

SIP
phone sends an INVITE (D1)

SIP
phone sends a CANCEL (C1)

SIP
phone receives C1 200 OKSIP phone receives 487 Request terminatedSIP phone sends ACK
                        

SIP
phone receives D1 200 OK

                        SIP phone ignore the message

Scenario
2:

SIP
phone sends an INVITE (D1)

SIP
phone sends a CANCEL (C1)

SIP
phone DOES NOT receive C1 200 OK                        SIP
phone receives D1 200 OK
 
                       SIP phone sends ack and keeps sending some CANCEL




Do you think they are correct?

Thanks,

Andrea



From: herve.jourdain at mstarsemi.com
To: c_prasanna_c at hotmail.com; androjoker at hotmail.com; discussion at sipforum.org
Subject: RE: [SIPForum-discussion] Which should be the correct behaviour?
Date: Tue, 1 Apr 2008 14:18:23 +0200





















Hi,

 

I would only add that it’s
likely that SIP phone receives D1 487 Request Terminated…

 

Regards,

 

Hervé

 









From:
discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of prasanna c

Sent: vendredi 28 mars 2008 13:19

To: Andrea Puddu;
discussion at sipforum.org

Subject: Re: [SIPForum-discussion]
Which should be the correct behaviour?



 

Both are not correct
scenario.  Sip phone MUST not send CANCEL without receiving any
Provisional response response. If CANCEL is sent after receiving any
provisional response, then Scenario 1 is correct.







From: androjoker at hotmail.com

To: discussion at sipforum.org

Date: Fri, 28 Mar 2008 11:10:21 +0000

Subject: [SIPForum-discussion] Which should be the correct behaviour?

 

Hello, 



does anybody know which should be the correct phone behaviour in these two
scenarios?

-         
Scenario
1:

SIP
phone sends an INVITE (D1)

SIP
phone sends a CANCEL (C1)

SIP
phone receives C1 200 OK 

SIP
phone receives D1 200 OK 

 

-         
Scenario
2:

SIP
phone sends an INVITE (D1)

SIP
phone sends a CANCEL (C1)

SIP
phone DOES NOT receive C1 200 OK 

SIP
phone receives D1 200 OK

 

Thanks,

 

Andrea

 







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