Oussama Hammami Email & Phone Number

Stockholm, Sweden

• Design and build a cloud based global SIP/WEBRTC solution for signalling, media, IVR and conferencing handling Rebtel’s >1 billion minutes a year.
• Create and implement the voice quality evaluation/improvement, optimization and monitoring.
• Facilitate integration of the calling platform with Rebtel in-house developed online charging system.
• Create a strategy for how to operate the calling platform in a lean way leveraging great tools and partners.

Morges, Canton Of Vaud, Switzerland

• Deployment of Adeya Solution in Customers environment including OS (Patching, Software upgrading, Scripts adaptation and Automation scripts/playbooks).
• Perform in Software Design of the new versions of Adeya solution.
• Monitoring and maintaining servers, statistics and data analysis.
• High availability & Load balancing; F5 strategies implementation and configuration.
• Maintain and Provide support for PKI Processes and components including Adeya HSM.
• Involved in Quality tests and Clients Support Levels 2 and 3.

Voxtrot - Telephone services VOIP – Morges (Vaud)- Installation and configuration of Call-Out and Call-Back service.- Participate in the conception, realization and installation of the new SIP platform.- Participate in the conception, realization and installation of the new Billing system.- Monitoring and maintaining SIP servers (Asterisk, Kamailio).

Science Park EPFL (Lausanne)

- Development and improvement of solutions SIP: Porta-billing, Porta-Sip and Astrad ‘Asterisk+RADIUS’.- Monitoring and maintaining servers SIP (Asterisk, Kamailio and openser), statistics, data analysis and Support Level3.- Searching for new statistics and optimizations.- Supervision of technical support and errors documentation.