Hello Forum
Beginning this past Saturday, 11-16, a few of my SIP customers on my network reported phones that were not working. It would not be the entire group of phones. Just one or two out of say, 4 or 6. Looking at the server details for each customer, I find that random VOIP phones were not registering anymore. Digging into it I find that the core router is registering multiple "unreplied" connections from the host routers and various UDP ports of their choosing. (please see firewall connections screenshot attached). I use Powercodes BMU and billing server with a Mikrotik 1100Ah router. Putting these through a reboot on a couple occasions tonite remixes which phones or ATA's register.
Having not experienced this before, I am looking to the forums for some troubleshooting ideas. Thank you in advance for your time.
Firewall Export Screenshot