You shouldn't send a CANCEL if a provisional response has not been
received.

Chris.


>-----Original Message-----
>From: Yadavalli, Satya [mailto:[EMAIL PROTECTED]
>Sent: 04 April 2003 15:31
>To: 'Christer Holmberg'; Gupta Adetya-A19368
>Cc: [EMAIL PROTECTED]
>Subject: RE: [Sip-implementors] for noresponse to Invite, should it be
bye
>or cancel
>
>I thought CANCEL in either case should be just fine.
>(Will we be violating the spec by sending CANCEL in the first case?)
>-satya
>
>-----Original Message-----
>From: Christer Holmberg [mailto:[EMAIL PROTECTED]
>Sent: Wednesday, March 05, 2003 2:54 AM
>To: Gupta Adetya-A19368
>Cc: [EMAIL PROTECTED]
>Subject: Re: [Sip-implementors] for noresponse to Invite, should it be
bye
>or cancel
>
>
>
>Hi,
>
>In the first case you shouldn't send anything. In the second case you
>should
>send CANCEL.
>
>Regards,
>
>Christer Holmberg
>Ericsson Finland
>
>
>
>Gupta Adetya-A19368 wrote:
>
>> Hello All,
>>
>>     In the following scenarios,
>> should we be sending BYE or CANCEL
>>
>> CASE 1
>>   A                                 B
>>   |                      |
>>   |     INVITE           |
>>   |-------------------------------->|
>>   |     INVITE           |
>>   |-------------------------------->|
>>   |     INVITE           |
>>   |-------------------------------->|
>>   |     INVITE           |
>>   |-------------------------------->|
>>    no response Times out
>>   |                                  |
>>   |     BYE                  |
>>   |----------->                     |
>>   |     CANCEL            |
>>   |----------->                     |
>>
>>     out of BYE & CANCEL, which one should be sent.
>>
>> CASE 2
>>   A                                 B
>>   |                          |
>>   |     INVITE               |
>>   |-------------------------------->|
>>   |     100                        |
>>   |<--------------------------------|
>>   |  no further response Times out
>>   |                                  |
>>   |     BYE              |
>>   |----------->                     |
>>   |     CANCEL   |
>>   |----------->                     |
>>
>>     out of BYE & CANCEL, which one should be sent.
>>
>> regards
>> Adetya
>> _______________________________________________
>> Sip-implementors mailing list [EMAIL PROTECTED]
>> http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
>
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