[cisco-voip] Registering a hardphone to a different CCM cluster

[Paul Yago]

Hello,

 

Does anyone know the secret to forcing a phone to register to another
CCM cluster on the same subnet? 

 

We have one CCM cluster, running TFTP on both CCMs, to which our DHCP
server points new phones (via the 150 option). Sometimes I would like to
switch a hardphone (i.e. 7905) from this cluster to another separate
cluster. 

 

To do so, on the phone I disable DHCP and change the TFTP Server 1 value
to the other CCM. And when I validate, it restarts the phone and 50% of
the time, the phone registers with the other CCM. 50% of the time it
stays with the original CCM, regardless of the new settings. In such a
case, the network settings on the phone still have the correct TFTP and
DHCP settings, but the Call Manager settings are still set to the
original CCM.

 

I would like to find a way to force my phone to register with the new
CCM. Is there a way other than changing the TFTP settings? By the way,
I've tried turning off the TFTP service of the original CCM, which
works. However I don't always have access to that CCM.

 

 

Thanks,

Paul

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