Comms Over Modem and PSTN Line

Hi All,
Is it difficult to set up an ABSLC50/4 to communicate with an ABMicro 1000/1200 via a modem and a PSTN?
I have two outstations that are too far for radio comms and will have to look into comms over phone line.

All comments / advice welcome.
Thanks,
Dave.

It's not too difficult; the challenge is usually in setting up the modems. Browse the Rockwell knowledgebase and you will find a handful of documents describing various modem configurations.