ringtones for internal or external calls

[imfloridaguy]

I'm using several T26P phones and am not sure how to set something, or if it can be done.

My client wants one ringtone for incoming calls, but a different ringtone if the call is from an internal call, such as tranfering a call from another phone, or an extention to extention call.

Also, if it can be done, can you tell me the setting in the config file, in additon to the gui. I provision via a config file if at all possible.

Thanks!