BLF on Sip Trunk (check extensions status)

Asterisk Asterisk Support
1

Dear all,

i have configured two Asterisk PBXs (named A and B), they are connected via SIP Trunk.

I need to configure on A the BLF in order to see the status of the phones registerd on B.

Is it possble to do this?

Thanks and regards,
Davide

2

I’d look at this:
http://www.asteriskdocs.org/en/3rd_Edition/asterisk-book-html-chunk/DeviceStates_id265044.html

3

The support also varies between Asterisk versions. In Asterisk 13 you can use PJSIP itself to exchange this information between systems.

4

Thank you very much for your help, is there any guide that explains how to configure PJSIP for this feature?

Thanks,
Davide

5

There’s a complete guide including configs[1] on the wiki.

[1] https://wiki.asterisk.org/wiki/display/AST/Exchanging+Device+and+Mailbox+State+Using+PJSIP