The initial question most people ask themselves is: “What is compatible with my existing ISDN system”? What’s clear is that a router-controlled, VoIP-based solution must be in place, which can run via the internet (DSL) as soon as the ISDN is switched off. There are many ways to undertake a conversion as quickly and efficiently as possible.


VoIP explained

Voice Over IP is often referred to as IP Telephony or Internet Telephony. This is a technical system which, in contrast to the conventional ISDN variation, includes IP connections to broadband, enabling voice communication via the internet. “IP” is the abbreviation for Internet Protocol – the network protocol which forms the basis for connections via the internet. Each internet-enabled device has its own IP address which can be used to send data back and forth between end devices.


What’s it all about?

VoIP means telephone calls are no longer made using telephone connections, but via the internet, which is universally beneficial. Providers are able to supply a full range of services such as telephony, fax, TV, internet and mobile telephony via a data network. This means that a separate telephone network is no longer required, resulting in significant cost savings, not to mention less administrative work. The clear advantage then is that VoIP makes communication simpler, faster and more flexible.


A classic PBX is still connected to the exchange via ISDN or analogue. In addition to telephones, additional analogue devices such as fax machines, EC (card) terminals, remote maintenance modems, alarm systems and even door intercoms can also be connected. beroNet recommends a step-by-step ‘try and test’ approach when converting several different devices and functions to this new technology. As a result the communication and functionality on an IP basis runs more uniformly across the board, which is a significant benefit.


Check out the range of options when reconnecting in this way

It is important to do an initial check to determine what sort of PBX is available and what degree of compatibility exists with the selected VoIP provided. So-called ‘hybrid and VoIP systems’ offer significantly higher levels of compatibility. It is therefore key that the client is able to rely on constant availability when switching to VoIP. If the internet protocol is already being used for voice transmission purposes, no additional new end devices are normally required. This means the client is able to relinquish their ISDN system immediately or, alternatively, at a later date. In this case it is possible to run the system using a VoIP connection.


Greater compatibility with beroNet’s hybrid systems – bridging the way to a soft conversion

As is normally the case, the ISDN system can be operated using a Gateway from beroNet on an all-IP connection. If the old ISDN system is replaced by VoIP, beroNet’s VoIP Gateway can be used to operate both systems in parallel. This means clients can take the step by step approach, switching gradually to VoIP and being able to check at each stage that everything is working accordingly. beroNet’s team are qualified in each area of the process to ensure that clients can make the most out of new opportunities arising from the conversion and of course to ensure the transfer process runs smoothly.


Conversion equipped with a fallback solution

Should it be the case that during or following transfer to VoIP things do not run smoothly, the old variation (ISDN) can be easily restored on a temporary basis. Thus the risk of failures during conversion is mitigated as far as possible. beroNet’s gateway also facilitates the distribution of extension-based incoming calls to the ISDN or VoIP systems. Moreover calls between the systems are also possible, making this an ideal solution to ensure the smooth migration from ISDN to VoIP.

Dirk Weckerle

Author: Dirk Weckerle

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