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

[Paul Yago]

Thanks Candace, the problem is that I'd like to switch back and forth
between CCMs. And I don't have access to the first one. And when I
attempt to register a phone with CCM2 which has never been registered on
CCM1, then I still see this problem. Perhaps there is still a phone
record on the CCM1 though. I was checking for phone records and I'm not
quite sure where they are? In TFTPPath?

-----Original Message-----
From: Candace Holman [mailto:candace_holman at harvard.edu] 
Sent: Wednesday, August 10, 2005 1:12 PM
To: Paul Yago
Cc: Ryan Ratliff; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Registering a hardphone to a different CCM
cluster

Do you have the phone record on both clusters?  It may be worth a try to

just delete the phone record from the first cluster, or even more 
simply, zero out the MAC address, save and reset the phone. 

Candace

Paul Yago wrote:

>These suggestions (Alternate TFTP, DHCP enabled, TFTP setting) work
fine on the 7940s and IPCommunicators. However the 7905s and the 7912s
are still staying with the original CCM. 
>
>Unfortunately, we also have 7902s which are useless because we can't
even change the TFTP settings, and register with the right CCM.
>
>-Paul
>
>
>
>
>-----Original Message-----
>From: Ryan Ratliff [mailto:rratliff at cisco.com] 
>Sent: Wednesday, August 10, 2005 10:59 AM
>To: Paul Yago
>Cc: cisco-voip at puck.nether.net
>Subject: Re: [cisco-voip] Registering a hardphone to a different CCM
cluster
>
>Since the TFTP server tells the phone what CM to register with the only

>way to force your phone to register to another CM cluster would be to 
>change the TFTP settings.
>
>That said you do not need to disable DHCP to achieve this.  Simply set 
>"Alternate TFTP" to True, then manually enter in the TFTP server IP 
>address.
>
>-Ryan
>On Aug 10, 2005, at 1:49 PM, Paul Yago wrote:
>
>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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