I have a customer with around 450 IP phones spread out over various sites which are all connected via fiber and thus on the same LAN. Periodically throughout the day, 30 phones will go unreachable for 3-5 minutes and then register again. This morning almost all the phones went offline for 5 minutes. The system stays online the entire time, with no sign at all that the system is overworked. It does not correspond to any one making programming changes. Network issue?
Addition - Using pjsip extensions. Even phones in the same building as the phone system drop offline and then come back. Phone brand doesn’t seem to matter as both desk phone and cordless phones are going unreachable.
You need to resolve your addresses , both 192.168.4.44 and 10.1.0.11 exist in non-routeable address spaces, so it is likely a self inflicted problem,look very closely at 7050
