[cisco-voip] CCM CTI redundancy

[Ryan Fields]

Thanks Ryan. I think replication is working, the MTP required
configuration on the Primary is also checked on the Backup. I have
tried this on a similar setup using callmanager 3.1(2c) and still came
up with the same problem. Any other workaround ?

JRyan


On Apr 6, 2005 12:23 AM, Ryan Ratliff <rratliff at cisco.com> wrote:
> 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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