The AastraLink Pro delivers large PBX and Key System functionality to the small business environment. Featuring an Auto-Attendant and individual Voicemail boxes which automatically configure on initial startup, the AastraLink Pro manages and directs incoming calls to individuals or groups by extension dialing or name search. It also has the unique ability to allow the FXO ports to operate in a Shared Line Appearance (SLA), pooled or mixed line mode, allowing the user to take advantage of PBX functionality yet still operate in a mode similar to their old key system. Key System telephony features include: SLA, hold and hold alerts, paging, intercom, 3 way conferencing, corporate and personal directory.