Cloud Sip

SIP Trunking for businesses looking to connect their PBX or MS Teams phone system to a carrier

Utilise your investment and make and take calls from your current phone system.

Transform MS Teams into a complete UC platform and PBX replacement.

Prosum’s Cloud SIP is a smart and cost-effective way to connect your business to the PSTN.

It provides organisations of all sizes with high quality, cost-effective, scalable telephone lines for SIP-compatible PBX’s and MS Teams phone systems.

Cloud SIP Benefits

Direct Routing for MS Teams

Integrate Cloud SIP directly into *Microsoft Teams and make and receive outgoing calls through Prosum, rather than Microsoft.

Cost Savings

Your business will benefit from a more affordable connection, line rental fees, and lower call charges when you switch to Cloud SIP.

Highly Scalable

New hire coming in? Expanding to a new site? With Cloud SIP, it’s much easier and faster to add additional call capacity when and where you need it.

Choice of Flexible Call Plans

There are no lock-in contracts and, with flexible PAYG and Unlimited Direct Routing Call Plans for MS Teams; there’s a solution to suit every business.

Business Continuity Options

If your site link fails due to unplanned disruptions or overflow, your calls can be redirected to your chosen recovery site or mobile number.

Dedicated Local Support

Prosum is wholly based in Australia. Nothing is outsourced overseas. So when you need our help, we’re right here for you.

*Prosum’s Cloud SIP service removes the need for any onsite SBC hardware, maintenance and support. Our fully redundant Cloud SIP networks connect directly to Microsoft data centres. All you need are the required Microsoft licenses purchased directly from Microsoft or a Microsoft partner.

  • Microsoft E1 + Phone System add on.
  • Microsoft E3 + Phone System add on.
  • Microsoft E5.

Not Sure if Cloud SIP is the right fit for your business?

Contact us today for a free, no-obligation consultation.

1800 007 229

Why Partner with Prosum?

20+ years of experience designing, servicing, and maintaining the best ICT solutions for business and government across Australia.

Tailored solutions delivered with the peace of mind of using a single provider – from the first contact through to ongoing support, we’re with you every step of the way.

  • We conducted a review for potential VOIP providers that could implement a reliable and feature-rich cloud-based IP Telephony platform. After reviewing other providers, we selected PROSUM who was able to transition our College to a Cloud IP Telephony platform successfully. PROSUM’s expertise is of the highest standard, and I have no issues in recommending their solutions and services. Staff are particularly impressed with the high-quality audio afforded by the HD handsets and due to the outstanding clarity, wonder if the other party is still there as there is no ‘pops’ or ‘clicks’ on the line.


    STUART McMINN, IT MANAGER, - UNIVERSITY COLLEGE