New customer I picked up has almost all Cisco SPA504G phones and they are causing this to spew in the log.
res_pjsip_pubsub.c:787 subscription_get_handler_from_rdata: No registered subscribe handler for event x-broadworks-callpark from 248
The Cisco phones are all the same model and firmware.
60 seconds on Google showed me nothing helpful. I’ll look more carefully later, but figured I would toss it out here until I have time to look into it tomorrow.
Only thing I saw quickly was the phones say this. Would that be the cause?