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Beginner

Registering IP Phone over internet

Hi Everyone, 

I would like to if I can register phones to the CUCM in my office over internet from other locations. If so, what are the challenges? I remember I can't register phones through Public IPs long back. 

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Hall of Fame Cisco Employee

Re: Registering IP Phone over internet

Configure MRA or phone VPN for that, will depend on the phone models

HTH

java

if this helps, please rate
Beginner

Re: Registering IP Phone over internet

Dear Jamie, 

Thanks for your quick response. I am aware of MRA but not phone VPN. 

What boggling my mind is how CUCM can reject a registration request its getting over internet. When there is reachability to the CUCM, it should process request and register the phone, how CUCM declines the registration? that mechanism I would like to know.. 

Thank you

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