uuid-standby is the same as a Consumer agent for mod_fifo (off-hook agent).
Khalil,
Yes it's possible, it's just a matter of putting the right commands on your dialplan. When you log in your uuid-standby agent, put the session uuid in a hash (hash insert/agents_uuid/myagent/uuid), then you query this hash (hash select/agents_uuid/myagent) before originate and set a variable on the originate channel, when the call is established you call intercept app with the agent uuid:
<action application="intercept" data="${agent_standby_uuid}"/>
This will bridge your originated call with the agent's standby leg. You can even pause the agent before calling intercept to make sure the agent doesn't get another call or call callcenter_track app callcenter_track(myagent), this will tell mod_callcenter that this agent has an external call and the agent won't be called until the number of external_calls is 0 again.
I'm pretty sure you can do the same with mod_fifo.