Analog modem and VoIP

Answered Question

Hello -


We have an analog modem that we need to connect to our CCM 6.x solution. I read the ATA 186s don't support it. Do we need to use an FXS card in the router instead?

Correct Answer by Paolo Bevilacqua about 8 years 9 months ago

With ATA, the modem would work up to moderate speeds only, and require a perfect IP network.

An FXS port in the router doesn't have any limitation and is a much better solution.


Hope this helps, please rate post if it does!

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Correct Answer
Paolo Bevilacqua Mon, 06/23/2008 - 23:17
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With ATA, the modem would work up to moderate speeds only, and require a perfect IP network.

An FXS port in the router doesn't have any limitation and is a much better solution.


Hope this helps, please rate post if it does!

Paolo Bevilacqua Thu, 06/26/2008 - 02:24
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Do you have E1 ot T1 in the router? If so you might be missing the necessary "network-clock-select" command.

Paolo Bevilacqua Thu, 06/26/2008 - 09:34
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Check anyway "show controllers T1" for any slips. If none, search "troubleshooting ata fax" and configure the ata accordingly to the document.



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