Sip Trunks

Want to Cut Your Business Communication Costs and Save Money?

Switch to Prosum’s SIP Trunk Plans & Low Call Rates. It’s your Smartest Business Choice.


Sip trunks

Prosum’s SIP Trunks are the perfect solution for businesses needing to make the most of their existing PBX.

SIP Trunks reduce line rental fees and call charges, saving you a fortune in ongoing communication costs.

  • Ready to save a fortune in ongoing communication costs?

    Get started today with Prosum's SIP trunks.

prosum's Business SIP Trunking Plans

Select Your Plan

Easy to Setup – No Lock-in Contracts – No Commitments

(All pricing is ex.GST)

PAYG Call Plan

Pay-as-you-go for all the calls you make every month within Australia using our LOW call rates with per-second billing.

5  SIP Lines – $15.00/mo

10 SIP Lines – $30.00/mo

20 SIP Lines – $60.00/mo

30 SIP Lines – $90.00/mo

Call Rates

  • Local Calls: $0.10 per call
  • National Calls: $0.05 per minute
  • Fixed to Mobile: $0.13 per minute
  • 13/1300 Outbound: $0.30 per call

Unlimited Call Plan

Prosum’s Unlimited monthly call plan includes UNLIMITED calls to local, national & fixed to mobiles within Australia.

5  SIP Lines – $265.00/mo

10 SIP Lines – $530.00/mo

20 SIP Lines – $1060.00/mo

30 SIP Lines – $1590.00/mo

Call Rates

  • 13/1300 Outbound: $0.30 per call

Optional Add-Ons

DID Numbers

  • Single Number – $1.00/mo
  • 100 Numbers – $39.00/mo

Number Porting

  • $195.00 – once-off cost.
*Number porting is subject to your existing carrier’s number porting arrangement.

Contact us to find out more about our SIP Trunk Plans.

Need a custom quote? Talk to a SIP Expert on 1800 007 229 or contact us via our online form.

Our Solution For You

Enjoy Cost Savings

Your business will benefit from an affordable connection, reduced line rental fees, flexible call plans and low call rates. And, there are no lock-in contracts so you can cancel your plan anytime.



Number Portability

Carryover your number to us and keep it for the life of your business – even if you move location. We can assign your numbers across different sites or relocate them as number ranges.

Scale Quickly & Easily

Is your business welcoming new staff or expanding to another site? Adding additional call capacity is quick and easy. Your business can make changes when and where they need to.

State-of-the-art Platform

Backed by Australian Tier 1 carrier, Prosum SIP uses redundant and highly-secure infrastructure located in data centre facilities in Melbourne, Sydney and Brisbane.


PABX Compatibility

We use industry-wide SIP standards and our SIP trunks interface with all major IP based PBX’s and legacy ISDN phone systems.

Superior Support

Our support team is based in Australia, so your small, medium or large organisation can all enjoy the same 24/7 round the clock support.

About Prosum

Prosum is a leading Australian ICT solution integrator and provider of Enterprise-grade SIP Trunking, Telephony, Data, Unified Communications, and Contact Centre solutions. We offer the end-to-end expertise and resources companies need to succeed in their communication delivery.

Call Prosum today on 1800 007 229, or fill out our contact form to find out how we can help your business.