Every 3 Minutes - Single Error "WARNING[8190] res_pjsip_pubsub.c: No registered publish handler for event presence"

Dont know what else to say, I have a new install that is set up but not in production yet. I have a few extensions and a trunk set up. Everything looks good

Except for the fact that every 2-3 minutes i see this warning. There is nothing in the logs between these warnings. I am not even sure that this means. Google searches seemed to indicate it could have something to do “PJSIP has received a subscribe request for the event named “presence”. It either has no idea how to deal with this event, or, possibly, has not been configured to handle it.”

That would imply one of my extensions is sending a weird request? Problem I see is there is no other info to tie it back to an extension.

Am i missing anything?

[2016-03-12 20:31:16] WARNING[8190] res_pjsip_pubsub.c: No registered publish handler for event presence
[2016-03-12 20:33:46] WARNING[8190] res_pjsip_pubsub.c: No registered publish handler for event presence
[2016-03-12 20:36:16] WARNING[8190] res_pjsip_pubsub.c: No registered publish handler for event presence
[2016-03-12 20:38:46] WARNING[8190] res_pjsip_pubsub.c: No registered publish handler for event presence