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Centrally managed IP phones and SIP trunk connectivity for a multinational Skype for Business deployment


With headquarters in Brisbane, Australia, Cardno is a global infrastructure, environmental and social development company operating in more than 100 countries with a 6,000-strong workforce. In recent years, the company has been experiencing rapid growth around the globe, both at existing offices and new sites that were opened to support new projects that it had won.

Cardno’s communications infrastructure was based on Microsoft’s Skype for Business 2015 unified communications and collaboration solution. The pace of the company’s expansion presented challenges for its IT team who needed to ensure that they could maintain reliable and high quality voice services for the global workforce despite the rapidly growing network.

Visit the Cardno website for more information.

Highlights & Challenges

  • Simplified management of IP phone devices and voice infrastructure

  • Migration from ISDN to SIP trunk voice connectivity

  • Highly responsive professional services and sales engagement team

“More than simply an equipment vendor, AudioCodes has become an ideal partner for us as we expand our presence throughout the region.”

Matthew Russo, Infrastructure Manager - APAC at Cardno


After investigating the available options, Cardno determined that AudioCodes with its wide-ranging One Voice for Microsoft 365 portfolio of products and solutions would be the ideal partner for its needs. AudioCodes offers an end-to-end selection of voice-enabling products, meaning that companies can rely on a single source for all their Microsoft unified communications needs.

AudioCodes 400HD IP phones have all been certified by Microsoft for use with Skype for Business and range from the entry-level 405HD to the high-end, executive 450HD model which boasts a high resolution color touch screen. Cardno selected the 440HD model for its own deployment. The 440HD is a mid-range business phone with integrated sidecar for speed dial contacts and Skype for Business presence monitoring. All AudioCodes phones offer ease of use and high definition voice quality.

A crucial factor in Cardno’s selection of AudioCodes’ IP phones was their ability to be centrally managed and configured via the AudioCodes Device Manager tool. Based on an intuitive GUI display, Device Manager helps administrators identify IP phone problems in real time, enabling them to be fixed rapidly and efficiently. Device Manager also enables zero-touch provisioning of devices and mass firmware updates to be carried out automatically from Cardno’s central management site.

For SIP trunk connectivity, Cardno selected the AudioCodes Mediant 2600 session border controller (SBC). Part of the highly scalable and field-proven Mediant SBC family, the Mediant 2600 delivers seamless interoperability with Skype for Business and virtually any SIP-based network or PBX platform, and robust security and protection against malicious attacks. Cardno deployed two Mediant 2600 SBCs in a redundant configuration to ensure a high-availability connection with its SIP trunk service provider.

  • Device Manager

    AudioCodes Device Manager gives administrators full control over IP phones and other meeting room devices within their organization.

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In AudioCodes, Cardno has found a solid partner to assist it throughout its journey to a global Skype for Business deployment. Whenever Cardno opens a new project office at a site in APAC, AudioCodes IP phones’ zero-touch provisioning capabilities mean that high quality voice communications can be up and running in no time. With Device Manager, Cardno’s IT team can monitor its entire deployment of IP phones wherever they are located and troubleshoot and fix issues rapidly, in most cases without the need for onsite help.

At Cardno’s main sites in Australia, AudioCodes SBCs ensure seamless and flexible SIP trunk connectivity leading to reliable calling and lower communications costs. The new infrastructure is future-proof as well, providing support for Skype for Business 2019 and Microsoft Teams when needed.

“More than simply an equipment vendor, AudioCodes has become an ideal partner for us as we expand our presence throughout the region,” said Matthew Russo, Infrastructure Manager – APAC at Cardno. “AudioCodes’ high quality devices and management solutions, backed up by a highly responsive local engagement team and global professional services staff, ensure that employees at our new sites can enjoy reliable voice services fully integrated with Skype for Business from day one.”

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