[asterisk-users] Asterisk registrations - state?

[Antony Stone]

Hi.

I'm using Asterisk 16.2.1 with some registrations (ie: my Asterisk server is 
registering to other PBXs as though it were a telephone).

Is there any way I can get presence / state information from those PBXs in the 
same way that a registered telephone can?

In other words, can I send a Subscribe request to the PBX so that I get Notify 
announcements about other extensions and whether they're idle / busy / ringing 
/ etc., the same as BLF indicators on a SIP phone can do?

I've looked at 
https://wiki.asterisk.org/wiki/display/AST/Querying+and+Manipulating+State but 
this appears to be only for the state of clients registered to my Asterisk 
instance, not for the state of clients registered to the same remote PBX as 
Asterisk itself is registering to.


Thanks,


Antony.

-- 
"It is easy to be blinded to the essential uselessness of them by the sense of 
achievement you get from getting them to work at all. In other words - and 
this is the rock solid principle on which the whole of the Corporation's 
Galaxy-wide success is founded - their fundamental design flaws are completely 
hidden by their superficial design flaws."

 - Douglas Noel Adams

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