StreamWIDE selected to supply a Voicemail Platform including Visual Voicemail and Fax over IP to Swisscom, the incumbent and larger telecom provider in Switzerland, and at the end of 2017 has officially fully migrated all 9 million Swisscom voicemail boxes over to the new platform. The project was meticulously executed by StreamWIDE's team of experts with the professional support from the Swisscom teams. StreamWIDE specialises in carrier grade value-added services and mobile business process solutions for enterprise and operators, delivering on premise or cloud-based end-to-end next generation mobile value-added services. The Paris-based firm has six subsidiaries globally, more than 130 million end users on the StreamWIDE platforms and deployments in more than 70 countries. The newly deployed platform offers Swisscom business and residential customers, both wireline and wireless, a voicemail solution which is a fully virtual NFV platform on OpenStack. Swisscom's sustainable growth needs, as well as their cloud preference, made OpenStack a requirement for this project rather than an option. StreamWIDE's modular architecture and excellent horizontal scaling capabilities allowed a simpler and quicker deployment in a cloud compared to a conventional setup. In collaboration with the Swisscom Team, StreamWIDE also enhanced and implemented Fax Over IP as part of the voicemail platform. The migration of different profiles and complex configuration from the legacy platform was handled seamlessly and without customer impact due to the newly developed migration tools. These tools ensured minimal impact on the provisioning systems and allowed a smooth online migration on a per subscriber basis including all settings, messages, and greetings. A portion of the solution also includes the implementation of the Visual Voicemail platform for both iOS and Android operating systems.