EPM custom ringtone

I’m working with some Aastra 6867 handsets and would like to deploy two custom ring tones to it (one for internal calls, the other for external) and I’d like to do this with the EPM but can’t see it in the GUI or wiki.

No problem editing the base files, and I’ve already put the two wav files in the /tftpboot folder, but not sure what would need to be added to the astra.cfg

Any ideas?
Thanks.

Well, I gathered the syntax for getting the tones onto the phone, but I can’t work out how to tell the phone to use them.
adding this into the base aastra.cfg file will do the trick:

custom ringtone 1: "tftp://pbx/toneint.wav"
custom ringtone 2: “tftp://pbx/toneext.wav”