ISDN2 lines are used for voice and data communications . They start from 2 channels (lines).
You can add more connections (in pairs) up to 8 channels . This increases the number of sconnections and the available bandwidth. It means you have built in flexibility. Your telecommunications lines can grow as the business grows. If you reach 8 channels, then it is time for ISDN 30. More than 8 channels, then ISDN30 may be better suited.
ISDN gives you access to the internet, much like a standard phone line. The key difference to a standard line is that ISDN2 channels can be used separately – so you can use the internet on one channel and receive a fax or make a call on the other.
An ISDN2 connection can be utilised for transferring both call and data information between devices, and begin at two separate channels.
If you need to you can add several more channels to the system, catering for up to eight different connections. This allows you to connect with more devices at the same time, and would also improve the bandwidth available. In addition, it means that you can purchase a system that suits the size of your business at present, with the chance to expand in the future.
Not only can you transmit data, but you can also use the Internet at the same time, as you would have been to with a regular phone connection line. The main difference is that you can use the connections separately so there is no need to be unable to use the telephone whilst you are surfing the Internet.
The clearness of the call is also more likely to be of a high quality with an ISDN connection than it would have been with a regular phone.
Speed is not an issue, as ISDN2 lines can achieve anything up to a speed of 128kbps when both channels are being used for the Internet at the same time. This is much more effective than other types of connection, and is great to have as a backup.
Where necessary, you can use different contact numbers for each of the devices on the system.
- If you are connecting the appliances to the system directly you have the chance of using anywhere up to nine different numbers leading to the equipment of your choice.
- If you choose to operate a switch board, this gives you the chance to have as many different connections as you want.
The systems are reasonably priced, with a standard system costing approximately the amount that you could expect to pay for two regular phone connections.