hi,
I have developed a lot of interfaces for asterisk and freepbx,
which includes API to create/edit users, get active agents in queue, active calls, etc.
I have developed full walboards/dasboards,
kindly let me know your exact requirements and I will give the best price and time possible,
If you need any demo, I can send you videos/snapshots of the Interfaces I have already developed,
in addition to just click to call and call list in CRM, I can make your agents to be able make/receive calls directly from web browser,
kindly let me know if we can chat in detail,
regards,