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Topic # 79935 24-Mar-2011 08:05
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Hi.

I have recently connected an SPA 3102 to my asterisk solution. I am looking to utilise the FXO interface to connect to an ISDN2. Simple question will this work or will the PSTN interface have to be a POTS line?

I have the solution cabled up but cant pick up dial tone from the ISDN line, it is cabled between the ISDN2 to the FXO port as below.

ISDN --> RJ45 (straight) --> Straight Through Coupler --> RJ11(2wire) --> FXO

I get fluctauting voltage readings on the SPA 3102 so I beleive it may be wiring problem or a problem with the housing of the RJ11 end in the RJ45 coupler.

Any suggestions or ideas are appreciated.

Thanks,
Ian



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  Reply # 451315 24-Mar-2011 08:34
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The SPA3102 doesn't support ISDN, you still need to have a NT adapter converting the ISDN to POTS to use an analogue device.



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