Who is connected?

On FreePBX System Status, under FreePBX Connections is an indication of how many IP Phones and how many IP Trunks are Online.

Is there a way to determine WHICH specific IP phones are online from among all of the extensions configured?

From bash

rasterisk -x ‘core show channels verbose’

If you prefer the FreePBX gui, try using Reports, Asterisk Info, click at Peers.

You’re welcome.

Perfect. Thank you!