Filtering strange character sequences out of usernames

Hello The user names arriving at Freeradius from the server has strange character sequences in them. For instance, the user's realm starts with =3D28 Is there a way of filtering out or converting these sequences to something human-readable? Thank you Barry Barry A Byrne Network Applications and Public Services Cable & Wireless Direct Dial: +44 (0) 1344 812046 Mobile: +44 (0) 7900 164 620 Switchboard: +44 (0) 20 7206 5555 <http://www.cw.com/> www.cw.com