[asterisk-users] Asterisk (1.4) and hints/presence/BLF

[John Hughes]

Playing with hints/presence/BLF on asterisk I've made the following
"discoveries".

   1. The wiki at http://www.voip-info.org/wiki/view/Asterisk+presence says:

      "If you add incominglimit=1 to your peer in sip.conf, the SIP
      channel will notify you when that extension is busy."

      As "incominglimit" is obsolete you can use "call-limit".  Also you
      don't need to limit it to one, just having a call-limit at all
      works.  (Tried with call-limit 20).

      What is the logic behind the linking of presence to call-limit?

   2. A phone is only seen as busy if it's received an incoming call. 
      Outgoing calls don't change the state.

      Why?