I had it set in the freeswitch directory to the employee's first name and last name (no ampersand).

 

      <variable name="effective_caller_id_name" value="Ellis Ayers"/>
      <variable name="effective_caller_id_number" value="305"/>

 

The tech that installed the phone set the Caller ID field on the phone itself to Testing & Accountability. That is the name that I was seeing registered with sofia in freeswitch.