I have multiple queues in our Asterisk PBX system. Is there a way to log the agents into/out of more than one queue at once? Currently, an agent dials 701* to log into the main queue (701 is the queue number). But with one code (e.g. 600*, whatever*) I want the agent to be present in multiple queues instead of logging into one, hanging up, dialing the next and logging in, etc. Is this possible?