[Asterisk-Users] CLI Destroy SIP channel?

[Matthew Boehm]

Is it possible to destroy a SIP channel from CLI?  `show channels`

  SIP/3044-0645  (conference s            4   )      Up MeetMe        |Mp|
  SIP/3044-3f29  (conference s            4   )      Up MeetMe        |Mp|

My extension is 3044 and I am NOT on any calls right now. Somehow this
didn't get destroyed when I hung up. Rebooting my phone didn't change
anything.

How can I get rid of those?

THanks,
Matthew