We used to ask: Should you get ISDN or ADSL?

Integrated Services Digital Network and DSL both offer options for reliably accessing the Internet over telephone lines at rapid speeds. Unlike standard dial-up connections, ISDN and DSL allow you to simultaneously use the telephone and Internet on the same line. They're more frequently available in cities than small towns or rural areas. However, a comparison of ISDN and DSL reveals significant differences in speed, equipment needs, cost and other factors.

What is Packet Switching?

Packet switching is similar to message switching using short messages. Any message exceeding a network-defined maximum length is broken up into shorter units, known as packets, for transmission; the packets, each with an associated header, are then transmitted individually through the network. The fundamental difference in packet communication is that the data is formed into packets with a pre-defined header format (i.e. PCI), and well-known "idle" patterns which are used to occupy the link when there is no data to be communicated.

ISDN still trumps cable, DSL

IDG Integrated Services Digital Network modems will dominate the digital modem market for the next couple of years, despite a growing interest in faster, lessexpensive remote access methods, according to a recent study by Cahners InStat Group.

The preference for ISDN modems will remain relatively flat, seeing a 2 percent decline over the next two years, predicts Emmy Johnson, senior analyst for Cahners and author of Telecommuting Modern Trends The Users Perspective. The preference for Digital Subscriber Line modems is estimated to rise 10 percent and preference for cable modems to grow 5 percent over the same period, according to the study.

ISDN 2

Are you surprise of known that too . Formerly known as OnRamp 2, ISDN 2 business phone lines transforms your existing analogue telephone line into two digital connections. ISDN2 features are;

• Two telephone numbers on the one ISDN 2 phone service.
• With ISDN 2 there are two digital channels capable of transferring both voice and data at bandwidth rates of 2 x 64kbps or 128kbps when 2 lines are combined
• Only one service line is required for telephones, faxes or computers allowing you to use the other line to work remotely in the field or at home or can be used for a 2 nd voice line.
• An ISDN2 service must be connected to an ISDN compatible PABX system at the customers premises
• With ISDN 2 you can access a 100 Number Direct Indial (DID) range so even if you only have 2 lines you can have 100 numbers. 

So, why should we use ISDN2 Phones Lines? think about it and search the internet. let us know in the comments below for extra marks  :)  

What is ISDN?

Integrated Services Digital Network (ISDN) is a set of communications standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network. It was first defined in 1988 in the CCITT red book. Prior to ISDN, the telephone system was viewed as a way to transport voice, with some special services available for data. The key feature of ISDN is that it integrates speech and data on the same lines, adding features that were not available in the classic telephone system. There are several kinds of access interfaces to ISDN defined as Basic Rate Interface (BRI), Primary Rate Interface (PRI) and Broadband ISDN (B-ISDN).