| is a digital telephone line that is primarily used for | | | | Rate (BRI) or ISDN 10/20/30 Primary rate (PRI) |
| Business telephones. | | | | ISDN 2 which is suitable for Business that require 2 or |
| ISDN (Integrated Services Digital Network) is a system | | | | multiples of 2 phone lines. e.g. 2, 4, 6 or 8 phone lines. |
| of digital phone connections which is compatible with | | | | ISDN 10 20 30 is known as a Primary Rate PRA |
| the existing (analog) telephone system. ISDN | | | | Digital ISDN service whereas ISDN 2 is known as a |
| customers can use their phones to make conventional | | | | Basic Rate Service. A ISDN Business Phone Line is a |
| (analog, dialup) voice connections. In addition, ISDN | | | | digital service that provides enhanced functionality via |
| customers can make high-speed digital data | | | | Digital Transmission and can re place conventional |
| connections with other ISDN-capable telephone | | | | analogue telephone lines. It is available in configurations |
| customers. | | | | of 2, 10, 20 or 30 channels. ISDN 10/20/30 Business |
| ISDN allows data to be transmitted and received | | | | Phones can provide up to 30 x 64kbps channels |
| around the world using end-to-end digital connectivity. | | | | making it suitable for small or large applications. |
| With ISDN, voice and data are carried by 64Kbps | | | | A Direct In-Dial is a range of 100 numbers allocated to |
| bearer channels (B channels). Multiple B channels can | | | | your ISDN service. It is sometimes referred to as 100 |
| cooperate to provide higher data rates. Common ISDN | | | | Number range. Direct In-Dial ranges are always in |
| installations can easily be configured to use two (2) B | | | | blocks of 100 and are only available on ISDN2 and |
| channels, providing a true data rate of 128Kbps. In all | | | | ISDN 10/20/30 services. In-dial ranges always start |
| ISDN installations, a data channel (D channel) handles | | | | with 00 as the last two digits and end with 99 as the |
| control signalling at 16 kbps or 64 kbps, depending on | | | | last two digits of the range. Multiple In-Dial Ranges can |
| the service type. | | | | be supplied on a single ISDN service on Telaustralia |
| Typical applications include call centres and offices | | | | Telstra and Optus services. |
| requiring large numbers of multiple lines or extensions. | | | | Even though you may only have 2/4/6 lines you can |
| ISDN provides Business Phone users with digital | | | | have 100 numbers and this allows you to allocate a |
| access to switched voice and data over a single | | | | direct dial number for any individual or department with |
| integrated network connection. | | | | your company. This allows you to efficiently manage |
| ISDN 10/20/30 is a premium business grade service | | | | your calls by directly internal and direct calls to the |
| for all local, national, mobile, international and special | | | | desired locations while retaining the ability to direct |
| service calls. | | | | certain advertised numbers via a receptionist or call |
| ISDN 10/20/30 provides : significant cost savings as | | | | centre. |
| multiple services can be delivered down a single | | | | With a Direct In-Dial range you are also have access |
| copper pair of wires faster. Call dialling and | | | | to Extension Level billing which allows you to bill calls |
| disconnection is faster allowing for increased efficiency | | | | out via each extension of the 100 number range. |
| and the indial feature allows you to direct dial | | | | Typical application for this would be serviced offices |
| extensions rather than go via a switchboard or | | | | where the calls need to be metered or call costs from |
| receptionist. | | | | a particular extension billed back to a customer or |
| ISDN comes in two basic configurations. ISDN 2 Basic | | | | department. |