Today we distinguish between traditional analog digital telephone exchange PBX and IP telephone exchanges based on VoIP technology. SISNET implements and integrates analog and the digital PBX telephone exchanges of the leading companies like Alcatel-Lucent, Siemens and Nortel.

VoIP is the process of digitization and transmission of voice over Internet protocol. Depending on the current infrastructure of the company, there are two ways of implementing VoIP. The first way is to upgrade the existing PBX exchanges with IP modules while the other one is a complete replacement of the existing traditional PBX exchanges and the application of VoIP telephone numbers.
Advantages of using VoIP exchanges in comparison to traditional PBX switchboard are as followes:
- free calls between networked locations
- free calls to a mobile VPN
- free audio conferencing and video calls between networked locations
- integration with existing business solutions, voice mail
- a centralized Web based administration
- a centralized software PBX switchboard
- one place Cost – complete control of expenses
SISNET can help you choose the appropriate telephone company for your business.


