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GLOSSARY

Analog phone: Telephones that send transmissions and perform switching that are not digitally generated. Some analog phones may have digital features, but they send and receive analog transmissions over a telephone line.

Convergence: When communications technologies are combined, and all transmissions travel over a single network, rather than separate networks for voice and for data.

Firewall: A network's firewall monitors all inbound and outbound traffic, allowing only permitted traffic to pass through the gateway to your network system.

Message Waiting Indicator: Uses an icon or light to show that a message is waiting in your Allworx® Inbox, where all your voicemail, email and fax messages are held for you.

Network Address Port Translation (NAPT, or NAT): enables a local network to use one set of network addresses for internal traffic and a second set for external, Internet traffic. This allows a company to 'hide' or shield company user addresses from the Internet, limiting access from hackers.

PBX (Private Branch Exchange): Your own, smaller version of the phone company's central switching office. A PBX controls all your incoming and outgoing calls, and offers the benefits of many automated features, easy set up and flexibility when adding or changing your phone system.

VoIP Phone: These phones send and receive digital signals of voice to digital networks for transmission over network and Internet lines. They do not require a dedicated phone line; they can use your office network or the Internet.