Main console features of this small business system an expandable design to let you grow into a fully featured telephone system with anywhere from one to 10 stations. Auto attendant on each line answers outside calls, provides callers with a company directory, automatically forwards calls to a specified extension, and enables callers to record voice messages when they get no answer. Digital answering system records up to 180 shared minutes of incoming messages, outgoing announcements and memos. 2.5mm jack allows you to connect music devices like MP3 players, boom boxes, tablets or smartphones. Full-duplex speakerphone increases participation by allowing both ends to speak and be heard at the same time for conversations that are more true to life. Caller ID allows you to see the name, number, time and date of incoming calls. 100-name /number phonebook directly lets you quickly store and dial frequently called numbers. Main console also offers call recording, voice prompts and more.