I think the simplest test would be to take your computer/300 modem to a place where there is a wired landline and see if it still fails.
73, Joe, K1ike
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On 1/1/2021 9:13 AM, David Frechette wrote:
The time lag of the OOMA may be the cause of your problem; I have also seen this issue with the various VOIP services. If you don't actually have a real landline for comparison, you may never get to the root of the problem. Tweaking the modem settings may help, but at which end would you start?