 05-02-2006, 11:12 PM | #1 (permalink) | ||||||||
| Junior Member
Rep Power: 0  Gender:  Country:  | Prologix modem woes... I'm having a problem with the external modem connection on a Prologix cabinet. I'm using the correct USR 839, set as described in the Avaya docs. The modem usually drops the call after the first ring (in other words, it doesn't really answer at all). Sometimes it takes several rings, and then drops the call, and very occasionally, it will actually pick up and start to handshake - but drops the call after only a few seconds. I'm stumped. The problem isn't the modem (I've tried 3 different brand new USR 839 modems and they all do the same thing). I suspected some "quality issues" with the processor interface cable (I'd previously had a bad connection on the DTR wire), so I pulled apart the cable and wired everything onto a punchdown block (connected to the processor with an amphenol connector). Exactly the same results. Could the RS-232 interface on the processor have gone wrong? | ||||||||
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| 05-03-2006, 03:45 AM | #2 (permalink) | ||||||||
| Moderator   MSYoung is meddling with dragons
Location: San Diego, CA Rep Power: 5 Gender: Country:   | The dip switches on the back of the US Robotics modem are not left in the default position. When you tried your other USR modems, did you set the dipswitches? __________________ Do not meddle in the affairs of dragons for you are crunchy and taste good with ketchup. Marty | ||||||||
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| 05-03-2006, 10:28 AM | #3 (permalink) | ||||||||
| Junior Member 
Location: Netherlands Rep Power: 4 Gender:  Country:  | Did you put a string in the modem? It a common problem that when you for example put an auto answer string in the modem, and have the system parameters maintenance also programmed with auto answer, the modem will take the incoming call and then releases it. MAybe you can first of all make your modem default | ||||||||
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| 05-19-2006, 01:44 PM | #4 (permalink) | ||||||||
| Junior Member
Rep Power: 0 Gender: Country: | Thanks for the replies, y'all. I figured out what was wrong - at some point during my struggle with the bad processor interface cable, the switch got rebooted - defaulting the external modem field to "none".  It's interesting that the modem occasionally would try to pick up! | ||||||||
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