Getting Phones to Work in FXS Ports

From: Lord, Chris (chris.lord@lorien.co.uk)
Date: Tue Sep 09 2003 - 05:16:13 GMT-3

Hi Group,

I would very much appreciate some help with this guys..... I am trying to get a standard British Telecom phones to work in the FXS ports on my routers. When I plug a phone into port 0 the phone rings continuously whereas plugging it into port 1 leaves it dead. Neither ports seem to respond to basic IOS config commands. I think I have eliminated equipment faults because I've tried several phones in several FXS cards in several routers. I'm using a BT (white) plug to RJ11 adaptor and I've tried several of these as well.

I am wondering if FXS ports are designed for USA phones and aren't compatible with BT phones unless some special IOS config or phone lead configuration is done??? I've looked on the CIsco web site but can't find anything about it.

Has anybody else in the UK had the same problem and managed to solve it?

Thanks in advance,

Chris.

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