I've actually been using Device::Modem to do my dialing (which in turn imports Device::SerialPort). However, once I make a connection to the other end it doesn't recognise the 'CONNECT' and waits for the timeout before returning control. I don't know if that helps. Using Device::Modem to dial and check modem was really simple. Just having other issues communicating through the modem to the other side. If anyone wants to offer up any expertise that'd be great. I'll post if I have anything.