====== sip_presence_notify ======
**S → C {type:'sip_presence_notify', from:..., basic:..., activity:..., note:..., format:..., subscription_state:..., msg:...}**

sip_presence_notify – received SIP presence information.

arguments:
  * from - SIP address of client with changed presence status
  * basic - client online status:
      * "open" - client is online
      * "closed" - client is offline
  * format - message format:
      * "application/pidf+xml": SIP presence information
      * "application/watcherinfo+xml": presence subscribers list
      * other formats may also occur
  * msg - SIP presence message as it was received from server

optional arguments:
  * activity - activity description according to [[https://tools.ietf.org/html/rfc4480#section-3.2|RFC4480 section 3.2]]
  * note - free text description
  * subscription_state - subscription state, eg "active;expires=296" (seconds)

===== subscribers list =====
If you have requested [[ixnx:wrtc:rtcgate:sip_presence_subscribe|sip_presence_subscribe]] with your own SIP address as "to" you will receive a sip_presence_notify with format:'application/watcherinfo+xml' there msg contains a raw list of SIP clients subscribing to your presence status.