The Asterisk support dynamic users that login to extention?

Call center have many worker that log into the system at beginning of the Shift. each worker log on to one extention.
All outbound call (& and inbound) write to the CDR as USER & Extension

Asterisk support like that? (it’s belong to agent subgect?)
Or A2Billing?

Yes, Asterisk can do this, for an example see wiki.ljackson.us/Asterisk_Queue .

Also useful is the file queues-with-callback-members.txt, in the doc directory of Asterisk’s sources.

Cheers.

Marco Bruni