Back sometime we wrote a guide on how to dynamically read and display searchable directory information straight out of a Yealink phone here. Currently, we have a customer that migrated from Cisco Callmanager to Asterisk! (YAY) and a little bit of research with my colleague … “Cisco SIP IP Phone corporate directory integrated into FreePBX”

I had responded to a thread on the FreePBX forum about how to restrict calling without a user first logging in on a device/user mode in FreePBX. Here’s a simple dialplan which you can then use for your implementation. For FreePBX users, put these lines … “FreePBX Device User Mode – Enforce login”