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New Member

Analog modem and VoIP

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?

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Gold

Re: Analog modem and VoIP

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!

6 REPLIES
Hall of Fame Super Gold

Re: Analog modem and VoIP

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!

New Member

Re: Analog modem and VoIP

The modem speed is at 9600. Is that slow enough? It still does not work.

Hall of Fame Super Gold

Re: Analog modem and VoIP

Do you have E1 ot T1 in the router? If so you might be missing the necessary "network-clock-select" command.

New Member

Re: Analog modem and VoIP

Yup, it's a PRI and it has that command. It seems that when they try and dialin to the modem it just automatically hangs up.

Hall of Fame Super Gold

Re: Analog modem and VoIP

Check anyway "show controllers T1" for any slips. If none, search "troubleshooting ata fax" and configure the ata accordingly to the document.

New Member

Re: Analog modem and VoIP

Thanks!

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