Hello folks, 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