Date: Fri, 06 Jun 2008 09:54:46 -0400 From: Mark Stosberg <mark@summersault.com> To: freebsd-questions@freebsd.org Subject: outbound serial modem now times out or drops connection Message-ID: <1212760486.29520.22.camel@localhost>
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We are using qpage to dial a remote TAP modem (Sprint and Verizon), so we can send pages about our hosting infrastructure without using the internet connection. Recently it started failing consistently with "timeout to connect". I first suspected the remote modem (Sprint), but found I got the same result with other carriers. (And Sprint denied a problem on their end). I have since tried a whole battery of approaches including having the phone line checked by the local phone company, trying a different modem and trying a different phone cord. Trying a new modem (US Robotics external 56k serial modem) did help slightly. With it, we consistently connnect, but then after a short pause the connection is dropped. This is easily reproduced in "minicom": (Using the Sprint TAP modem number here). ATDT18886561727 CONNECT 31200/ARQ/V34/LAPM/V42BIS NO CARRIER I'm out of ideas here. This phone line is only used for this outbound service, although our alarm system also uses it for outbound alerts. Any suggestions for possible causes or further troubleshooting approaches are appreciated. Thanks! Mark
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