[Freeswitch-users] mod_callcenter record template

[Vbvbrj]

In mod callcenter.conf.xml there is:
<param name="record-template" 
value="$${base_dir}/recordings/sales/${strftime(%Y-%m-%d-%H-%M-%S)}.${destination_number}.${caller_id_number}.${uuid}.wav"/>
This names the file with callers number and callcenter's assigned 
number. Bit how to include in the file name the agent's number, which 
responded? Which variable to use?