Digital vs. Analog office phone systems

Most newer and more expensive phone systems communicate via digital technology. This means that sound is transmitted as bits of data rather than audio waves.

Theoretically, digital transmission has many advantages over analog transmission. Digital signals are less affected by interference and line degradation, meaning that digital lines have virtually no static or hiss.

However, most businesses make outgoing calls over regular analog lines. This means that even a digital phone system must convert signals back to analog waves whenever a call leaves the office. Because very little sound degradation occurs within the smaller confines of an office, analog systems actually sound about the same as their digital counterparts. The main reason for buying a digital system is that these systems tend to be better equipped to connect with accessories such as voice mail or caller ID.
PanatelDirect
NEC DSX-40 IntraMail Voice Mail Systems

NEC is pleased to introduce IntraMail, an integrated Voicemail System specifically designed for the DSX Phone System. IntraMail is available as a 4 port 8 hour system or a larger 8 port 16 hour system.

NEC designed DSX from the ground up with affordability in mind. Economy per port is maximized by high-density circuitry. All DSX telephones have a speakerphone and display for increased functionality and total lower station cost. Native support for ISDN PRI and T1 provides maximum connectivity for low initial investment. Since DSX is simple to install and easy to use, the expenses of configuration, programming, and post-installation training are minimized.

 
KX-T7720

NEC DSX Intramail 4-Port 8 Hour Voice Mail

KX-T7730

NEC DSX Intramail 8-Port 16 Hour Voice Mail


KX-T7731

NEC DSX IntraMail Pro 4-Port x 16-Hour Storage

KX-T7735

NEC DSX IntraMail Pro 8-Port x 32-Hour Storage
 

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