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Troubleshooting disconnect

Mr. Gupta,
I have two Cisco 805 Routers connected through a PSTN Line. The line gets disconnected after the modem handshaking tone The Sh line parameters indicate that Line one is idle and CTS, noDSR, RTS and CTS. I am using a US Robotics modem. Thanks, Vasily
Hi Vasily,
My first bet is the authentication and next would be line parameters if you have configured any. Please check those. Have you tried resetting your modem?

If these are right than your modem is probably not training up. Now probably you have a bad circuit or an incompatible modem. Replace the modem with a telephone and check the results.

Debug modem will give you helpful information to proceed further.

This was last published in May 2003

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