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Communication & Networks

AII-IP Instead of ISDN – This is How It Works

At the CeBIT venue Communication & Networks, telecommunications providers explain how to switch to Internet telephony.

06 Mar. 2017

Voice over IP, SIP trunking, and All-IP are highly current topics at CeBIT 2017. After all, German telecommunications providers aim to have the last ISDN connections switched off by the end of the year 2018. The SIP trunk from Telekom for commercial customers will also be introduced. Companies that still have analog telephone systems must act now. At Communication & Networks in Hall 12 they can find everything required for securely connecting smartphones, desk telephones, and computers with the Internet.

But what is actually required? The telecommunications provider AGFEO responds to the question often asked at present as to whether older telecommunications systems are completely worthless now with an unequivocal "No". Although modern systems such as the AGFEO IP-based ES series have an advantage, no customer has to be worried that telephoning will no longer be possible as of 2018. In principle, this conversion by network operators "only" affects the external network and the network hardware supplied by the provider for operation, but not the telecommunications system in use. The base station and terminal devices can continue to be used without a problem. The only prerequisite is that with conversion to All-IP technology (NGN) the past point of delivery of the ISDN network – the NTBA – is replaced by a "provider box", which makes an internal ISDN bus (S0) available. When attached, even older hardware can continue to perform for many years, assures AGFEO.

For customers who nevertheless aim to renew their systems, the company recommends its ES series, which it presents at its own "AGFEO Dome" at the open area of the trade exhibition tower. At CeBIT 2016, the "big" system was ES 7xx IT, which was presented and shortly thereafter successfully introduced to the market. With ES 730 IT and ES 770 IT up to eighty subscribers can be connected; both systems already offer ten and/or 16 IP channels. By the end of the year, additional modules are to follow with which the system (per module) can be expanded by a further 16 voice channels. This makes it possible to connect up to 32 IP terminal devices.

According to AGFEO, however, it must be taken into consideration that All-IP technology (NGN) no longer offers all of the familiar functions of the ISDN network. As a rule ISDN remote maintenance, call forwarding in the ISDN exchange, etc., are no longer supported. Electronic cash devices or alarm system switching by means of ISDN service protocols could present problems in the future.

At the trade exhibition stand of innovaphone (Hall 12, D14) CeBIT visitors can experience the latest trends in professional corporate communication in the form of a live application. With "innovaphone PBX" the company offers IP telephony and an all-in-one unified communications solution for all business sizes and requirement profiles. Other trade exhibitions of the company include the standard WebRTC, which innovaphone – as one of the first VoIP manufacturers on the market – integrated into its UC solutions, as well as the areas of "security" and "UC in the cloud". All innovaphone products come from the company's own development department in Germany. The company's principal place of business is in Sindelfingen, while other business locations are in Austria and Italy.

The German multinational VoIP company Snom presents itself at CeBIT as the "world's leading brand in the area of professional VoIP business telephony". Snom regards the barrier-free, distributed work of different locations by means of VPN as the biggest advantage over ISDN: "With the integration of UC solutions, the classic desktop telephone becomes an all-rounder in which much more is available than simply the possibility of making telephone calls". In terms of audio quality, Snom telephones also offer "much more than would ever have been possible with ISDN".

This year visitors to the Snom exhibition stand (Hall 12, D41) will be presented the entry model of a new generation of conference telephones for the first time: The C520-WiMi has two cordless DECT microphones that can be placed anywhere in the room. In addition, the conference telephone can be additionally extended by up to three cordless expansion modules, so that telephone conference calls can also be connected over several areas. "Such a scenario is in fact revolutionary in an IP environment – in the ISDN segment something like this would simply be impossible to realize", advertises Snom.