PJSIP/mwi task processor reached 500 scheduled tasks again

[sorvani (Jared Busch)]

With no log details to look at, I place a random bet on unsolicitied MWI notifications being sent out?

Strange SIP NOTIFY behavior

Greetings, I’ve been battling an issue that I cannot quite put my thumb on. On my most recent install for a customer, they started complaining of their phones “locking up”. As I have looked into it, i have found that the PBX is sending a ridiculous amount of SIP notify packets to the endpoints, which causes their CPU’s to spike to 100% and become pretty much unresponsive. I have 50MB wireshark dumps rotating on eth0, and when it starts ramping up, it will fill a 50MB capture file about once a m…

Sangoma phones receiving excessive notify packets

Someone approached me because their system was have periods of intermittent poor call quality and the usage graph on the dashboard was showing phones constantly going offline. This is an on site FreePBX 14 from distro. Using Sangoma phones (S300, S400, S500, DB20). Everything was up to date when I logged in for the first time. I switched them from Asterisk 13.22 to 16.3, but otherwise made no major updates. As I stated watching things, I noticed that there are 10’s of thousands of NOTIFY pac…