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Community Member

Call manager and Gateways

I have some 2800 routers configured to run with call manager. Everything runs fine but i need to change the IP's on the gateways. Will this have any affect on call manager?

5 REPLIES
Hall of Fame Super Gold

Re: Call manager and Gateways

You need to change addresses on the CM too.

Community Member

Re: Call manager and Gateways

Can you give us a little more information.

IP's of CM's

The config on the gw, are you sourcing the gw traffic from a loopback interface or from the Fa interface? Which IP is the GW registered with CM? Is your GW a H323/MGCP/SIP?

Community Member

Re: Call manager and Gateways

Call manager and Unity are on a server vlan. The Gateways are on the vlan relevant to the departments. I need to change their IP's. I want to change the IP of the FA int on the router, change this command

call-manager-fallback

max-conferences 6 gain -6

ip source-address 10.0.101.1 port 2000

max-ephones 35

max-dn 100

keepalive 10

!

....to the new IP.

I am using MGCP. I'm more of a routing/switching guy and not much experience with call manager. we contracted the install.

Community Member

Re: Call manager and Gateways

I will let an experts on MGCP comment on this, but if you are changing the address the gateway is registered with the CM and sourcing it's voice traffic, this will break communication between CM and GW. There might be other changes, but you need to change the IP address on the CM > GW setup.

Community Member

Re: Call manager and Gateways

where do i change the IP? I think the whole reason i posted here is because i only saw where to specify by host name of the gateway. I can't find where to change the IP.

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