If you are already using CID Superfecta for CallerID on inbound calls, then this module:
populates the ‘account code’ ‘userfield’ column with Caller ID Names for outbound calls
fwconsole ma download https://github.com/POSSA/freepbx-Outbound_CNAM/archive/master.zip
fwconsole ma install outcnam
module is crude and needs a bit of polish.