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IP telephony (VoIP)


IP telephony is a fast-growing and money-saving alternative to traditional landline phone calls. Access telephony services over your standard Internet connection!

Voice over Internet Protocol (VoIP) also known as an Internet telephony and IP telephony is not distance or location dependent, does not affect connectivity and can significantly reduce your telecommunication expenditures while increasing productivity. Once setting up VoIP equipment, you can take the advantage of unlimited local and international calls at extremely low cost.

Your business no longer requires separate cabling for traditional telephone systems. You can access VoIP phone system and make phone calls from any place; all you need is Internet connection. If your business requires not only voice calls, but also other advantages like call center applications, real-time and high-quality videoconferencing, DEAC will configure and find the best solution for you.

IP Telephony DEAC

Use IP telephony and cut your operational costs while making your business communications secure and encrypted!


Your own ID's contact lists

Among extra features of VoIP phone system or application are contact IDs for more convenient contact lists, call transfers, possibilities of conference calls, support for several VoIP accounts and many other options.


Secure and reliable connections

DEAC is ISO/IEC 27001:2013 certified and that confirms our high standards of information security management and the highest requirements on valuable information protection.


VoIP for all your devices

Nowadays, smartphones have become the most likely device to connect to VoIP phone systems, providing necessary capability for VoIP performance.


Increase security level using VPN

Technology combines and stores data within one single network - use DEACs VoIP technology to reach the most reliable connections via our secure VPN (Virtual Private Network).

VoIP phone system is created as hardware and software solution and it enables to use the Internet as the transmission media of voice content over the Internet protocol (IP) network. IP telephony works by converting sound into a digital voice communication and then transferring it through Internet broadband.

IP telephony: technical specification

    DEAC in collaboration with telecommunication service providers ensures VoIP solution by using SIP (Session Initiation Protocol) trunking, which replaces the need for traditional analog, T1-based Public Switched Telephone Network (PSTN) gateways and their attendant cost and complexity. PSTN network architecture has developed significantly over the past years as number of users, connections and calls have increased. Worldwide PSTN telephone networks are now almost digital and include not just fixed phones, but also mobile and other networks. Unified PSTN standards ensure seamless interconnections between various networks in different countries all over the world.

    SIP trunking is the use of VoIP to promote the connection of a private branch exchange (PBX) to the Internet. It is a direct connection between your organization and DEAC and it enables you to extend voice over IP (VoIP) telephony without the need for an IP-PSTN gateway. DEAC provides one of the latest PBX (Private Branch Exchange) phone system technologies – IP PBX, which uses the Internet Protocol to transmit calls.


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How internet calls are being processed?

Special hardware and software ensures connections to necessary fixed and mobile phones or telephone exchange systems in your office. Afterwards VoIP connects to IP network and sends voice traffic over it. So in fact, VoIP hardware and software ensures transferring of voice traffic between traditional telephony and data network.
Need detailed consultation? Ask our experts!

Why virtual phone exchange system is required?

Virtual phone exchange system or so-called Hosted PBX replaces traditional phone exchange system in your office or even your call-center. Say no to administration of your own phone exchange systems and reduce expenses, in the meantime increasing security of your phone calls! DEAC as an experienced provider of IT platforms for IP telephony will make sure your service runs smoothly, without interruptions and remains secure.

What are the main benefits of Internet telephony?

The number one reason to choose Internet telephony is the fact that it allows significantly to lower costs of phone calls, especially in case of international calls. The service integrates telephony with the internet, hence increasing productivity of your work. Important factor is also DEAC’s secure VPN-network, which ensures security for your business-calls.

VoIP telephony and IP telephony – what is the difference?

VoIP technology includes voice transmission over IP, but also provides other opportunities like video surveillance or broadcasts as an example.

Does your IP telephony solution provide the opportunity to use it from several devices at the same time?

Yes, we provide a PBX solution that allows to connect multiple devices at the same time using one extension. With our IP telephony service you will be able to answer a phone call from more than one device at a time.