Hi Guys,
I have a MGCP gateway setup when subscriber fail publisher will work Call 911 while the call is active shut down the cucm sub services. Make sure when Complete to bring up the subscriber services so you can continue with the tasks on the lab. Capture the following -- Backup call agent sends the message to the gateway to check the status of the active call OR -- Backup call agent sends the message to the gateway to check the status of the First call -- Gateway sends the status of active calls to the secondary call agent. -- Back up call agent send a message back to the GW requesting additional information about the call My configuration snip looks like this :- ccm-manager switchback immediate ccm-manager fallback-mgcp ccm-manager redundant-host <ip address of pub> ccm-manager mgcp ccm-manager config server <ip address of sub> <ip address of pub> here are the events noted from debug mgcp packets : ============== ======================================== **Event1: Backup call-agent sends the message to gw to check the status of active call for port 12 Apr 11 05:26:26.911: MGCP Packet received from <ip address of pub>:2427---> AUEP 178 S0/SU1/DS1-0/1...@r1.ccievoice.com MGCP 0.1 F: X, A, I <--- **Event2:Gateway sends the status message of active calls to the backup call-agent for port 12 Note: Nothing mentioned in I: so it refers no call present in this port Apr 11 05:26:26.915: MGCP Packet sent to <ip address of sub>:2427---> 200 181 I: X: 0 L: p:10-20, a:PCMU;PCMA;G.nX64, b:64, e:on, es-cci, gc:1, s:on, t:10, r:g, nt:IN ;ATM;LOCAL, v:T;G;D;L;H;ATM;FXR L: p:10-220, a:G.729;G.729a;G.729b, b:8, e:on, es-cci, gc:1, s:on, t:10, r:g, nt **Event3: Backup call-agent requesting additional information about the active call on port 23 Apr 11 05:28:28.936: MGCP Packet received from <ip address of pub>:2427---> AUCX 213 S0/SU1/DS1-0/2...@r1.ccievoice.com MGCP 0.1 I: 3 F: C, M <--- Questions : ========================= 1) Are the above events I have elaborated correct? Please correct me If I am wrong. 2) I tried to test call preservation on this setup . On an active call when I break the connection between MGCP gateway and subsriber, the gateway then registers with the publisher . However instead of the call staying up ...I see the ip phone showing "Temp fail" and the call to pstn drops . Why? Thanks & Regards, MJ
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
