The COMpact 5020 VoIP has all the innovative features of the 5010 – and even more configuration options. It comes equipped with ten a/b ports for analog telephones or fax machines, two S₀/U_P0 ports – one switchable, the other a fixed internal port for ISDN trunk line access or ISDN terminal devices – and two VoIP channels for internet telephony.

But that's not all – you can configure the COMpact 5020 VoIP to suit your specific requirements. One option: three ISDN trunk line ports, four or eight VoIP channels and eight internal ISDN ports. Another: six analog trunk line ports, four or eight VoIP channels and three internal ISDN ports. Or even mixed mode, with ISDN and analog trunk lines. If you need door intercom functions you can add the corresponding ports.

And, of course, an amazing 26 extensions, if you need them. The 2-wire U_P0 technology of the ISDN extensions also lets you use our high tech COMfortel system telephones with an existing "plain old" analog line.

One highlight, particularly for commercial users, is the COMpact 5020 VoIP's Automatic Reception function. It provides you with up to 10 independently functioning receptions, which you can cascade and use for multiple company operation.

You can, of course, configure all functions via the system's web interface. All you need is an operating system – e.g. Windows XP/Vista, Mac OS X or Linux – and a compatible web browser.

The highlights of COMpact 5020 VoIP:

• 1 ISDN port, switchable external (S₀) – internal (S₀/U_P0)
• Basic configuration with 2 VoIP channels for internet telephony and internal IP telephony,
  can be expanded to 4 or 8 VoIP channels
• SIP trunking support
• Fax over IP in combination with COMpact 2VoIP or 6VoIP Module
• Expandable with ISDN ports and analog trunk lines (POTS)
• 14 external calls simultaneously possible (6 x ISDN and analog line, 8 x VoIP)
• 1 internal ISDN port, expandable to 8 ports max, can be configured as S₀ or U_P0 ports
• 10 analog extensions with calling number and name presentation (CLIP and CNIP)
• Waiting field for 14 simultaneous external calls (ISDN, analog, VoIP)
• Upgradable with door phone and switching functions (with COMpact TSM Module/s)
• Music on Hold with additional announcement, can be uploaded from PC in WAV format
• Hotel function (check-in/check-out and printing of bills without a PC)
• Boss/Secretary function with flexible Boss/Secr. assignment
• Auto Attendant
• Open query
• USB host port for call charge printer
• Computer-assisted telephony within the LAN (Third Party CTI, LAN TAPI)

and more ... (see "Features")

Optimised for the system:

• ISDN system telephony with
  COMfortel 1100, COMfortel 1500, COMfortel 2500 and COMfortel 2500 AB
• IP system telephony with COMfortel VoIP 2500 AB
• Wireless system telephony with COMfortel DECT 900
• External voicemail system Voicemail Center 461.2