I hope this is simple issue because it seems like something with registration expiration, etc.
We use Asterisk (plain setup) with Cisco SPA phones (also nothing changed on settings, just proxy/UN/Password Everything on same LAN
So, what we observe is when call coming in – we can’t hear opponent but they can hear us. And this happens only when phone idle for some time. Second call coming in – all works fine.
Any idea what might be causing this? Hopefully this is common issue.
Thank you, Ivan