asterisk*CLI> sip show channels
Peer             User/ANR    Call ID          Format           Hold     Last Message    Expiry
192.168.0.30     line3       af00e7f7-1143ca  0x4 (ulaw)       No       Rx: INVITE                
64.61.93.190     ocY97PJM89  2ff281b92105b33  0x4 (ulaw)       No       Rx: INVITE                
2 active SIP dialogs

asterisk*CLI> sip show history 2ff281b92105b33
asterisk*CLI> 
  * SIP Call
1. Rx              INVITE / 102 INVITE / sip:19192460171@64.105.202.244:5060
2. NewChan         Channel SIP/VoicePulse-Primary-Brendan-10367280 - from 2ff281b9
3. TxResp          SIP/2.0 / 102 INVITE - 100 Trying
4. TxResp          SIP/2.0 / 102 INVITE - 183 Session Progress
[2009-09-28 16:21:35]  history 

asterisk*CLI> sip show history af00e7f7-1143ca
asterisk*CLI> 
  * SIP Call
1. Rx              INVITE / 101 INVITE / sip:8000@asterisk.crosscomm.net
2. AuthChal        Auth challenge sent for  - nc 0
3. TxRespRel       SIP/2.0 / 101 INVITE - 401 Unauthorized
4. SchedDestroy    6400 ms
5. Rx              ACK / 101 ACK / sip:8000@asterisk.crosscomm.net
6. Rx              INVITE / 102 INVITE / sip:8000@asterisk.crosscomm.net
7. CancelDestroy   
8. Invite          New call: af00e7f7-1143ca13@192.168.0.30
9. AuthOK          Auth challenge succesful for line3
10. NewChan         Channel SIP/line3-482c8fd0 - from af00e7f7-1143ca13@192.168.0.3
11. TxResp          SIP/2.0 / 102 INVITE - 100 Trying
12. TxResp          SIP/2.0 / 102 INVITE - 183 Session Progress
[2009-09-28 16:21:44]