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
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