Bt39s paragon 550 with 16 minute digital answering machine is feature packed with a 100 name and number directory protected by a non volatile memory other features include malefemale or personal outgoing message options type 2 caller display 30 numbers call log and hands free function allowing for high quality conference calls either via a headset or by using the speakerphone pbx compatible with meridian options making this phone perfect to sit in front of a switch in an office environm