Classic PBX systems mean more lines, more cards and more maintenance as the company grows. Gathering all of that in the centre turns a new branch into a heavy project. The Cloud PBX approach delivers the voice infrastructure over the network and from the cloud.
How it works
A virtual PBX carries calls over IP. Users connect to the service through an app, a desktop phone, a software client or a mobile application. The organisation manages call routing rules, voice menus, recording and reporting from an administration panel.
- Desk and remote users: The same number works in the office or at home.
- Software client: Softphone on the desktop, screen sharing and instant messaging.
- Mobile access: Calls, transfers and voice messages from the application.
- Conferencing: Meeting rooms, call recording and live transcription.
- Integrations: Connections to CRM, call recording and support systems.
Compared with a classic PBX
In a classic PBX, the number of lines, the card capacity and the cabling are planned together. With Cloud PBX, capacity scales as easily as the number of users and the cost of growth becomes predictable. Opening a new branch reduces to number planning.
- Opex instead of capex: A subscription per user instead of a large initial investment.
- Flexibility: When headcount changes the subscription is updated, no device is moved.
- Manageability: Configuration changes are applied immediately.
- Resilience: Fallback numbers and disaster recovery scenarios can be defined for every call flow. <!– /wp:list-item —
Installation and migration
Installation runs together with number porting, call routing design and user training. For the transition to be free of interruptions, the plan has to include a number porting schedule, the activation of the existing lines and a rollback procedure. As users get comfortable with the software client, physical desktop phones can be retired step by step.
Service quality and SLA
In a cloud based PBX, call quality depends on the quality of the internet connection and of the network segmentation. If jitter and latency are not managed, and QoS prioritisation and the traffic profile are not defined correctly, voice quality degrades. Serventa designs the VoIP infrastructure together with the network segmentation and measures quality with load tests.
A virtual PBX is not only a telephone system, it is the communication infrastructure of the company. A well designed installation makes opening branches easier, supports remote work and turns call data into something that can be reported.
