[cisco-voip] IP Phone Keep Looking old CCM

[Paul]

I would think that the only way for the phones to register to another CCM just because it has the same name is because you're using DNS. This would be unrecommended unless you have some bulletproof scheme to have your DNS servers up all of the time. 

I might be wrong. . . 


________________________________
From: Anthony Kouloglou <akoul at dataways.gr>
To: Ryan Ratliff <rratliff at cisco.com>
Cc: cisco voip <cisco-voip at puck.nether.net>
Sent: Thursday, May 14, 2009 3:11:46 PM
Subject: Re: [cisco-voip] IP Phone Keep Looking old CCM

Hi Ryan,
you are correct. That was (is) a dark spot for me: the hostname of the
ccm at these two settings.
I will do some more reading on this.
Maybe they got registered because the hostname was the same as the old
integration?
Also, the security profile on the device has nothing to do with the
problem i had?

Ryan Ratliff wrote: 
Sounds like you are talking about the OS Admin hostname of
the server versus the CCMAdmin System->Server settings.   The OS
admin pages are all specific to the OS of the server.  The CCMAdmin
settings are all the CallManager application settings.   They are
entirely separate and only related in that the CUCM application relies
on the underlying OS. 

IIRC  you mentioned before that you do not have DNS configured in the
network.  If that is the case and your System->Server entries were
by hostname then you are lucky your phones registered in the first
place.   I encourage you to go check the documentation for more
information on the role the System->Server entries play in phone
registration. 

-Ryan 

On May 14, 2009, at 11:42 AM, Anthony Kouloglou wrote: 

I have just changed the name from system->server to IP and kept the
hostname in the field of the hostname of the settingd->ethernet- and
the phones overcame the problem and work fine! 
If someone could explain this? 
If you have an ip configured in system->server what is the meaning
of host field in the settings->ip-?ethernet field? 

Thanks and Kind Regards 
Anthony 

Anthony Kouloglou wrote: 


Hi Wes, 
yes security is enabled (in serviceability you mean). 
Also, the devices got generated by the DMA from 4.1 so they have been
inserted with a security profile!! (i have never used this thing) 
I I changed it back to standard no secure 79XX profile but again, they
keep searching first for the old tftp. 
But, when i navigated through the phone menu to network config and then
to option 29 (something about resetting the settings) the phone never
looked for the old CCM :-) 
How can i do this remotely though? 

Thanks 
Anthony 

Wes Sisk wrote: 


Do you have secruity enabled?  If so, you have to updated CTL files to
make the 6.1 TFTP address a 'valid' TFTP provider. 

/Wes 

On May 13, 2009, at 5:20 PM, Anthony Kouloglou wrote: 

Hi, i had my 4.1 CCM replaced by a 6.1 CUCM. 
the old one is still running since it has co resident a CRS with an AA. 
I use a trunk to send calls to new 6.1. That works fine 
In my DHCP pool, i have the tftp option changed to point at 6.1 IP but,
the phones even though they have the new option for the TFTP (CUCM 6.1)
They keep register at old CCM 4.1!! 
Only if i shutdown CCM service at 4.1, the phone after a timeout, it
registers to 6.1. 
If then i turn again on the CCM service at 4.1, the phone does not
register back to the 4.1. 
But, if i reset the phone, it goes and registers back to the 4.1!! 
I do not use DNS but both CCM have the same name. 
Could this be a problem even though i do not use DNS? 
how about a factory reset to all phones? 

Because when i plugged in a brand new device, it got registered
directly to the 6.1. 
So it has something to do with the "memory" of the old devices. 

Thanks 
Anthony 
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