New Phone Lines: ISDN2 (OnRamp 2)

ISDN (Integrated Services Digital Network) are digital phone lines as opposed to PSTN phone lines which are analogue. ISDN2, or Onramp 2, are the most common ISDN service used by small and medium business.

ISDN lines are rented in groups of 2 and are not available to rent as single lines. For small business this means if you only need three ISDN phone lines then you will actually need to rent 4 lines. You may have to pay for an extra line you don't need.

Direct In Dial numbers for staff (100 number block)

One of the greatest features of ISDN is the ability to have an optional 100 number block (or in dial range).

So what does this actually mean for you?

Rather than only having one advertised number like traditional PSTN lines, ISDN allows you to have numbers for some or all staff members if you like. You may have often seen this on peoples business cards - a main number and their own private number.

This 100 numbers is not to be confused with phone lines. If you have 100 staff but only 6 phone lines then although every staff member may have a private number your business can only receive 6 phone calls at once. DID is an extra feature of ISDN and costs approx $35 per month.

It can be confusing but don't worry. We can take care of all your needs so you won't have to become a phone line expert. Just tell us what you need and what you're trying to achieve and we'll find you the best and most cost effective solution.

Some carriers may claim that ISDN call quality is superior to a normal PSTN line, but we think that unless you're an audiophile you will not be able to tell the difference.

If you need more than 10 ISDN phone lines then you should seriously consider upgrading to an Onramp 10 (primary rate phone lines)

So what does this actually mean for you?

  • Calls can be dialled faster.
  • Greater bandwidth than PSTN phone line for data (not relevant if you have broadband)
  • ISDN phone lines support video conferencing, including live full colour, two-way video, audio and data communication