<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7653.38"> <TITLE>Using a modem with Nagios as backup alert path</TITLE> </HEAD> <BODY>  Greetings All, We are setting up a new Nagios instance running version 3. With it we are adding a modem so that alerts can be sent via the phone system even if the data network goes down. In the testing I've done messages sent via the modem take quite a bit longer to be received than alerts sent via SMTP, this is because the modem goes through the dial up connection process and then sends the messages to each recipient in separate sessions, so I want to keep SMTP as the primary method and use the modem as a backup path. What is the best way to do this, can we do it without a bunch of work to implement? Suggestions and advice gladly accepted. Thanks, -greg </BODY> </HTML>