The Quadro2x was designed for small offices or self-sufficient branches with as many as 18 individuals. The price point makes it affordable for even home offices or teleworkers.

The connection to the traditional phone network allows use of fax machines, retail point of sale or emergencies. Your everyday calls would be placed on IP phones that take advantage of cost savings and the full complement of VoIP features.

Make up to ten simultaneous IP calls (as many as four through a VPN tunnel) in addition to the PSTN line. 

The Quadro2xi is an almost identical cousin to the 2x, but substitutes an ISDN high-speed, high-bandwidth connection for the regular phone port. An ISDN line offers a step up in WAN performance over DSL connections and the ISDN SO port accepts analog voice and other activity (fax, etc.). 

The Quadro4Li is ideal for the small businesses which require Key System or IP PBX features. Out of the box, the Quadro4Li can support 10 IP Phones and can expand to 18 total IP Phones while in PBX Mode. The four ISDN BRI lines can be used or an Internet Service Provider for local termination and calling. It economically delivers a wealth of IP PBX features and Key System benefits. Voice mail, auto attendant, on-hold music or messaging, caller ID with distinctive ringing, call pickup, paging and intercom and many others are built-in.

Sophisticated auto-recognition and auto-configuration capabilities simplify installation and operation. The administrator can modify automatic assignments through the graphical user interface.