What are Direct In Dial (DID) numbers?

These are the normal phone numbers that callers use to dial your SIP Trunking service (e.g. 03 8513 1300).

Unlike normal landline telephone numbers, you can select a SIP Trunk DID number in any state or region, and have all calls routed to your office regardless of your physical location. This allows you to provide a nation-wide presence and offer customers local call rates by advertising DID numbers in every capital city.

Alltel has DID numbers available for the following Australian cities:

  • Adelaide (SA)
  • Brisbane (QLD)
  • Cairns (QLD)
  • Canberra (ACT)
  • Geelong (VIC)
  • Gold Coast (QLD)
  • Hobart (TAS)
  • Melbourne (VIC)
  • Mullumbimby (NSW)
  • Nambour (QLD)
  • Perth (WA)
  • Sydney (NSW)
  • Other areas on request (subject to availability and pricing)

Each SIP Trunk PBX plan comes with a specified number of DIDs. If required, you can purchase additional numbers for a low monthly charge. (See individual plans for pricing details.)

You can also purchase a block of 100 DID numbers for $70+GST per month.

How do you transfer your existing numbers to Alltel?

You can also choose to keep your existing phone numbers (including standard Australian landline numbers, VoIP numbers, and 1300 and 1800 numbers).

Please see the following links for details on how to transfer your existing phone numbers to Alltel:

What are the differences between DID numbers and extensions?

Many of our plans provide different numbers of extensions and DID number:

  • DID numbers are the numbers that external callers dial to reach you.
  • Extensions include your office phones, and can also include things like faxes and central voicemail boxes (called voicemail-only extensions).

It is not necessary for there to be a 1:1 relationship between DID numbers and extensions:

  • You can use a single DID number, and then have a receptionist or call forwarding IVR menu that transfers calls to individual extensions.
  • Some individual extensions can have dedicated DID numbers, while others may use a shared DID number (for example, a customer service team).
  • Every extension can have its own DID number so that all extensions can be reached by external callers.
  • You can even have DID numbers that redirect callers to phones outside your system (for example a live answering service or mobile phone). In this instance, no extension is required.