Whats An Initialization or Init. String?
• Some particular modems experience problems getting or staying connected. Often these problems can be reduced or eliminated by using the proper modem initialization string. An initialization string forces the modem to use the command that you give it, overriding its internal dialing instructions. It seems that almost every modem brand and model has its own variation of the “Hayes AT Command Set” and “s-register” settings — there are literally hundreds of variations. Detailed discussion of modem initialization strings is beyond the scope of this page, but in general it is recommended that you read your modem documentation carefully, and don’t put more into the string than is necessary. As an example, with a Supra on a PC, the string AT&F2 is an adequate initialization string for many users; for a USR modem, AT&F1 is frequently adequate. These two examples demonstrate using a “template” — a pre-defined set of modem initialization codes which can be invoked with a single command. Most
