mark at dark.org
Tue Feb 11 13:51:31 CST 2020
Really depends on the speed of the modem in my experience even fax over voip is problematic outside a local network.
Are they external modems? If so have you considered moving the modems to the remote site and tunnelling the serial port over the internet? That should be flawless.
> On 11 Feb 2020, at 19:22, John T. Bittner <john at xaccel.net> wrote:
> I have a customer that heavily uses modems, the problem they don’t work reliably with some of the carriers I have used like Level3.
> This is somewhat expected due to the limits in VoIP so I need a better solution.
> If I set up an asterisk system on customer premise with an FXS card in it and have calls sent to another asterisk box with a PRI can I get this to be more reliable and better connect speeds.?
> Any way to detect a modem call and turn off the echo canceller?
> What if I use a lossless codec between the two systems, or would it be better to just run PCM to passthrough to the PRI.
> Any ideas would be helpful.
> John Bittner
> 380 US Highway 46, Suite 500
> Totowa, NJ 07512
> Phone: 201.806.2602 x2405
> Fax: 201.806.2604
> Cell: 973.390.1090
> www.xaccel.net <http://www.xaccel.net/>
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