am looking for a Perl Module which will allow me to talk to my modem, dial out numbers, and maybe send data in the X.25 protocal. This is for hobby purposes, and I have no maliscous intents (so that should clear the ethical issues to those who know what the hell I am talking about). I know Perl can interact with C/C++ in various module form, and well, I am actually asking for a CPAN modem as I have no idea what to do when talking to my modem.

What you are looking for is on one hand not exactly rocket science and yet not a cake-walk either. Essentially it boils down to the following elements (and this is Sunday before I have had my first cup of coffee so I may miss something)

• Establishing logical connectivity to your computer's RS232 port or modem.

  As mentioned elsewhere in the thread there is Device::Modem which when I looked at the docs seems to have very limited functionality. I might be tempted to crack some books and learn how my particular OS handles RS232 devices and roll my own module via h2xs.

• Commnicating to the modem device via the "AT" command set or equivilant thereof. Most modern modems use the AT command set so this is a safe bet.
• Handling the X.25 protocol.

  My very faint memories of the X.25 protocol lead me to believe that this is not for the faint of heart. Again this may be an application where I'd write my own module that I set up to pass data to it and let the workings of the module handle the encapsulation of the data within an X.25 packet.

  Likewise this module would deal with un-encapsulating data from recieved X.25 packets.

• Somehow making this all work with some form of Expect or Expect::Simple to deal with the prospect of "I sent this and I'm expecting that" type of functionality.

In your post you say you want to deal with X.25 over a modem. Are you sure you aren't using an X.25 PAD? If so the rules of the game may change.