I have been using Obi 100 for years and then switched to Obi 200 with pretty much the same configuration (or so I thought). I have several voice gateways configured to call out based on dial plan, but I use them very rarely. I have never had any issue calling out on those gateway on obi 100, but with the obi 200, I noticed if I haven't used any gateway for a long time, the first call using the gateway always failed with either dead air, or if I waited long enough, I'd get an error message that there's no response from the service provider.
However, once I hung up and dialed again, the call would go thru without any issue. And it'd be ok for a while until I stopped using it and forgot about it and one day I needed to use the voice gateway it'd fail again.
I have used 3 different providers and had the same issue and if I put them in one of the SP they always worked, so the problem is likely on my side, either with the settings on the Obi or my network.
I wonder if anyone has any idea what may be causing this issue. TIA.
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