Are more system phones, additional trunk lines, or a door intercom system needed? The telephone systems COMpact 2206 USB, 4410 USB, 5010 VoIP, and 5020 VoIP can be upgraded with expansion modules that provide additional connection options and features. Depending on the system, up to four modules can be used. The following table provides an overview of all expansion modules and the maximum number of modules that can be used in the various COMpact systems.

Expansion with two analog trunk lines (POTS – Plain Old Telephone Service). Thanks to the caller ID and name display (CLIP/CNIP), users do not have to forgo the comfort typically associated with ISDN, even with analog lines. The analog trunk can be used alone or in a mixed operation with ISDN and VoIP lines. A fax switch (active and passive) can be set up for each trunk line in the system.

Installation:

• 1 slot within the COMpact 5010 VoIP
• 3 slots within the COMpact 5020 VoIP

Trunk line port: analog dialing line, pulse/tone dialing, CLIP-capable (FSK/DTMF).