Cisco Support Community
Community Member

Phone Outage

I have a question:

Can an upgrade to a Call Manager Publisher cause MGCP to get updated and stop working for the subscribers?

I had the following configuration.  50 and 51 are subscribers and 40 is the publisher.  I upgraded the publisher and after it rebooted, the phones stopped working.  I changed 50 to 40 and then I failed all of the phones over to the publisher by taking the two subscribers offline.  The phones started working again.  I then changed the calll manager groups so that all phones would register to 40, brought 50 and 51 back online and I am in the process of upgrading them.  I was hoping somebody could verify if the 40 publisher updated the MGCP and it made the gateways stop working for the subscribers?  Or any other ideas of the cause of the issue would be great.



ccm-manager redundant-host

ccm-manager mgcp

no ccm-manager fax protocol cisco

ccm-manager music-on-hold

ccm-manager config server

ccm-manager config



mgcp call-agent 2427 service-type mgcp version 0.1

mgcp dtmf-relay voip codec all mode out-of-band

mgcp rtp unreachable timeout 1000 action notify

mgcp modem passthrough voip mode nse

mgcp package-capability rtp-package

mgcp package-capability sst-package

mgcp package-capability pre-package

no mgcp package-capability res-package

no mgcp package-capability fxr-package

no mgcp timer receive-rtcp

mgcp sdp simple

mgcp fax t38 inhibit

mgcp rtp payload-type g726r16 static

mgcp bind control source-interface GigabitEthernet0/0

mgcp bind media source-interface GigabitEthernet0/0


mgcp profile default



Community Member

Phone Outage

I forgot to mention that I looked up some example configurations and it looked like the ccm-manager config server should have been 50 or 51 depending on the subscriber.

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