Where to setup custom cadence and frequency of FXO?

Hi Guys

I have a question ,I have a remote PBX in my home country and the frequency and the cadence of the the FXO line its different than the USA , my DAHDI configuration doesnt have my country in the setup page but i manage to get the frequency and the cadence of the FXO lines.

Frequency 422
Cadence 200,200

Where can I setup this to make the FXO work properly with the PBX

Thanks in advance.