The DIAL Command ................ Syntax: DIAL Function: The current address (if one exists) is dialed up. Results: The following error codes can be returned in RC2: * RXERR_SERNOCARRIER * RXERR_SERNODIALTONE * RXERR_SERRING * RXERR_SERBUSY * RXERR_SEROK * RXERR_SERERROR * RXERR_SERCONNECT * RXERR_SERVOICE * RXERR_SERUNKNOWN * RXERR_NOSERIALDEV * RXERR_NOPHONENUM * RXERR_ENVCHANGED