ISDN 10/20/30

Roctel is Australia’s leading provider of ISDN 10/20/30 services, offering Free Connection on all services and saving you up to $3,200!

ISDN 10/20/30 is a business grade digital telephony service which is cost effective for businesses requiring 10 or more phone lines. ISDN 10/20/30 can also commonly be referred to as Onramp 10/20/30, T1/E1 services and Primary Rate services.

Roctel utilises the Telstra network to deliver ISDN 10/20/30 services. All connections are backed by premium Service Level Agreements, ensuring your business communications are monitored with the highest priority.

Many businesses choose to use a Direct In Dial (DID) service with their ISDN 10/20/30. A Direct In Dial gives you a block of 100 consecutive phone numbers that can be used by people calling your business. This allows your inbound calls to be managed to suit your particular business requirements. You can set up call groups, direct extension dialling and even advertise different phone numbers for different purposes. DIDs are also commonly known as a 100 number ranges or an indial ranges.

For more information, contact one of our business voice specialists today.

Roctel ISDN 10/20/30 Benefits

  • Free installations nationwide
  • Lower monthly costs compared with analogue lines
  • Direct In Dial (DID) functionality
  • Ability to transfer calls externally
  • Australia’s widest connection availability
  • Extension Level Billing
  • Premium quality & reliability
  • Compatible with phone, fax, data and Eftpos


ISDN 10/20/30 FAQs

What does ISDN stand for?

There are many acronyms in the wonderful world of telecommunications and ISDN stands for Integrated Services Digital Network.

What does the 10/20/30 mean?

The numbers are the amount of voice channels (lines) that are active on the service. For eg- an ISDN 20 service has 20 channels and can have 20 simultaneous calls (in or out) active at any 1 time.

Do I need a special phone system for ISDN 10/20/30?

You will need a PRI (Primary Rate Interface) card to connect the ISDN 10/20/30 service into to your phone system. Most phone systems or PABXs are able to take PRI cards, but we recommend double checking this first.

What are the monthly rental costs?

Depending on the amount of channels required, the monthly rental starts from as little as $24.33 per channel.

How long does it take to connect an ISDN 10/20/30 service?

The standard lead time for connecting an ISDN 10/20/30 is 25 business days.

Is there a limit to the amount of Direct In Dial numbers I can have?

Direct In Dial ranges for ISDN 10/20/30 services come in blocks of 100. You are able to have as many blocks of 100 as you need.

Can I transfer my existing ISDN 10/20/30 service to Roctel?

Yes. Switching your existing ISDN 10/20/30 service to Roctel is a completely seamless process which involves absolutely no down time whatsoever.

Are there any catches to the Free Installation offer?

Roctel saves every business thousands of dollars by providing Free installation on ISDN 10/20/30 services that are connected on a 24 month agreement.