[cisco-voip] CCM CTI redundancy

[Ryan Ratliff]

If you are seeing the CM as the RemoteMediaAddress it most likely means 
that you've got MTP required checked for that gateway in CCMAdmin.

Check to see if replication is working between the publisher and 
subscriber.  Assuming the pub is the primary server then when it goes 
down the sub will use it's local database and if the "MTP Required" 
option isn't set there then that could cause this issue.

-Ryan
On Apr 5, 2005, at 12:04 PM, Ryan Fields wrote:

Hi All,


I have a callmanager cluster using 3.3 and setup
cisco softphones with failover. When I use the
primary server, everything works well.
A show call active voice on the AS5400 gateway
showed the connection details below:

Using Primary Callmanager Cluster (Normal Operation)
VOIP:
RemoteIPAddress=216.226.244.2
RemoteUDPPort=24596
RemoteSignallingIPAddress=216.226.244.2
RemoteSignallingPort=2165
RemoteMediaIPAddress=216.226.244.2
RemoteMediaPort=24596
RoundTripDelay=0 ms
SelectedQoS=best-effort
tx_DtmfRelay=inband-voice
FastConnect=FALSE


The problems starts when I simulate a failure on
the primary, the backup takes over but I encounter
oneway audio. How come the remotemediaaddress takes
on the primary's ip address on a normal condition
and takes the address of the computer using the
softphone during failover?


Using Backup Callmanager in Cluster (Failure on Primary CCM)
VOIP:
RemoteIPAddress=216.226.244.3
RemoteUDPPort=30942
RemoteSignallingIPAddress=216.226.244.3
RemoteSignallingPort=1034
RemoteMediaIPAddress=172.16.10.72
RemoteMediaPort=30942
RoundTripDelay=0 ms
SelectedQoS=best-effort
tx_DtmfRelay=inband-voice
FastConnect=FALSE

Did I miss any configuration.  I made a callmanager
group and defined it to a device pool that
my softphones use. Both callmanagers are also
configured with 172.16.10.0/24 addresses
and are using a 1 to 1 static translation on the
gateway router.  The pc using the softphone is not
translated.


Thanks,
Ryan
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