Hello all, I am currently working on a generic approach to comm port programming. So far I have an implementation that connects/disconnects fine, and [c-programmers.ingnore()] a modem class derived from this basic class, encapsulating the standard Hayes AT command set and so forth, which seems to work fine so far...[\c-programmers.ingnore()] anyhow, my question is not C++ specific, I just need to get a hold of some resources on/ examples of actual data transmissions, and would appreciate any input whatsoever. Thanks.