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New Member

Extension Mobility Between Firewalls

Hi Experts

We are using Cisco Call Manager 4.3 with IPCC Express 4.1 and using extension mobility for our contact centre agents. We are having a problem in extension mobility.

Call Manger 4.3


Contact Centre Agents - 185

we have successfully implemented security between server and agent using Cisco Firewall and everythings going fine but when we want to connect an agent PC for extension mobility service its says NO HOST FOUND while when we change its ip address and use 172.16.1.X network the extension mobility works fine. then we also allow open complete IP on firewall to communicate with CCM but still its show NO HOST FOUND.

Please help in this regard.

Thanks in advance.


Re: Extension Mobility Between Firewalls

which directory service is running? DC directory or AD plugin?. are there network devices (switches, firewall etc) between the IP phone and publisher?

New Member

Re: Extension Mobility Between Firewalls

we are using DC Directory and yes Call manager is behind a firewall.

CCM IP Address


IP Phones 192.168.1.X

we open complete ip of IP Phones on firewall to communicate with CCM but still when we press button of services for extension mobility it says that NO HOST FOUND

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