Expand your phone system
capabilities through a SIP
trunking service.

Get the perfect balance between an on-premise system and an IP telephony with a SIP trunking service. Through a phone service with additional features delivered over the internet, you can enhance the use of your existing phone system without spending on new equipment.

Enhance your communication efficiency by eliminating the need for separate voice and data connections. A SIP service lets you maximise your internet bandwidth by adding voice traffic to your existing service and eliminates the need for line rental on lines you barely use.

Encourage communication among staff and across sites, with free Alltel to Alltel calls on the same account. At the same time, enjoy low rates for local, national, mobile, and 13/1300 calls. No additional charges for flagfall or call connection costs.

Connecting your system directly to the public network puts you at risk for security breaches, power outages, inclement weather, or any major disaster in your area. A virtual phone service gives you the option to redirect calls to an alternate number in the event your office becomes inaccessible.

Our servers are located at multiple and redundant locations. As your SIP trunk provider, Alltel specialists are on-hand, 24/7 to monitor your system, which guarantees that if a server goes down or experiences a system issue, your phone service remains up and active.

Despite being a hosted service, your business retains full control over your phone system through a self-managed web-based portal. Add and move phone extensions, track your usage, or change configuration settings anytime as your needs change.

Your Alltel SIP trunking service gives you enhanced call concurrency and call volume, along with on-demand scalability. You get the option to add or remove trunks as your business requires, without the cost of additional installation and line rental.

Customise your call flow and determine which phones ring by configuring your redirection scheme. As your SIP trunk provider, Alltel can help you tailor a call solution that makes sure no customer call is ever missed.

IP telephony is built for the future. Through a SIP trunking service, you can access new features through an enhanced communications solution, without the need for further investment on equipment.

Expand your reach with virtual numbers that can be called at local rates from all across Australia. Encourage global connectivity and make business calls to outside Australia, thanks to low international call rates.

Connect multiple sites, remote workers, or work on the road with enhanced call redirection options. You can also program calls to ring specific extensions or mobile numbers when a specific line is engaged or down.

Your direct in dial (DID) numbers are more than just regular phone numbers. These virtual numbers help widen your presence by giving you a 'local' business number for each area your business operates. What’s great about it is that customers that call your business are billed at local call rates, regardless of your office's' physical location.

Each plan comes with a specified number of DIDs. Additional numbers can be purchased for a low monthly charge. You have the option to get new numbers for your SIP service or keep your existing numbers (landline, VoIP, 1300 and 1800 numbers) by transferring them to Alltel.

Many of our SIP plans provide different numbers of extensions and DIDs. While some use these terms interchangeably, these two should be differentiated.

DIDs are the numbers that external callers dial to reach you. On the other hand, an extension is an internal number for each of your office phones, faxes, and central voicemail boxes (called voicemail-only extensions). It is not necessary for the number of your DID numbers and extensions to be equal.

Every extension can have its own DID to be reached by external callers, while others may use a shared DID number (for example, a customer service team). You can even have DID numbers without an extension. These redirect callers to phones outside your system (for example a live answering service or mobile phone).