ASA phone Proxy

[Seifeddine-Tlili]

Greeting All

With ASA phone proxy, we setup a nat  (one-to-one) with tftp address of the Publisher, however when a phone  got it`s config file , it will have the private ip of the CallManager  !!!

How can we solve that

any ideas  please

Thanks

[Steven Griffin]

Seifeddine,

The purpose of the ASA Phone Proxy is to make the ASA look like a Call Manager to the phones out there on the internet.   When the phone tries to download its TFTP file the ASA Phone Proxy converts the TFTP file on-the-fly and puts in the ASA's external IP in place of the CUCM.  Then when the phone tries to register all the SCCP information gets translated (I.E. proxied) by the ASA on its way to the Call Manager.

If you've set everything up correctly, that is what will happen.   If you have not set up everything correctly then what you are experiencing might happen.

An example config is here:

https://supportforums.cisco.com/docs/DOC-5704

-Steven