Hey all,
I am in a bit of a pickle. Since installing FreePBX, we have had a recurring issue where at a random time, all the phones will become “Unregistered” from the PBX. Anyone on the phone can continue the call, but all new in/outbound calls are denied. All of our phones are Polycom. the call center has 75 IP 331 phones, and admin has 30 VVX 410 phones. Asterisk is version 11.7.0 and FreePBX is 2.11.0.13
This issue happens at random, whether we are busy or slow, at night, after hours, or in the middle of the day. I have actively been looking at the asterisk -rvvv screen when it happens and it doesn’t show anything at all, except the people still trying to make calls. It is not gradual either, when the problem appears, all phones go offline all at once (besides those actively talking).
To date, the only way to bring the system back up is to do an amportal stop and then amportal start, after everyone is done with their call. Occasionally, we also have to stop/start MySQL too, but that is maybe 1 out of 10 times it crashes.
My network is pretty new and uses decent equipment. Phones connect to 1 of 3 Cisco Meraki POE Gigabit Switches. Those Meraki connect to a Cisco 3750 Core. The PBX is connected to that 3750 as well. We use VLans so the phones are on a 10.100.x.x and data is on 10.1.x.x and phones are provisioned via DHCP and Commercial EPM. The PBX server itself is a 3 yr old Dell with 2x Quad-Core Zeon PCU @ 2.5GHz, 72GB RAM, 2x 500GB 15k drives and 2x GB NIC cards. One connects directly to voice circuit the other to my network.
I have seen posts from people dating back to 2012 with similar issues, but not of them see to have a posted resolution… a Network Engineer friend has been looking at the polycom config files to see if there may be something in them causing it, but as of yet, hasn’t found anything. So while I wait for him, I figured I would post here.