Pro AV Catalog
300 Apollo Drive
Chelmsford, MA 01824
United States


2N, An Axis company, is an industry-leader engaged in the development and manufacture of access control systems including audiovisual IP intercoms, IP answering units and IP access control units. Since January 2018, 2N and Axis Communications have joined forces in the US and Canada to offer solutions for a smarter, safer world.

Model: 2N Indoor View

2N® Indoor View. The main feature of the 2N® Indoor View answering unit is a 7” touchscreen with a wide viewing angle.
Featured Product
Project List
Emergency Communications in Lifts - Don't Leave Your Clients Hanging in Mid-Air
Posted on Monday, November 25, 2019

There are two ways to avoid emergency communication system outages.


VoLTE, or Voice over LTE, is a solution mobile operators are using to replace voice communication which is still transferred using older 2G and 3G networks. VoLTE gateways needed for purely voice communication have been available on the market for several years already. Unfortunately, the modern codecs used in VoLTE networks cannot always reliably handle DTMF transfer, which is an essential functionality for lift signalisation protocols (P100, CPC). For this reason, VoLTE must be regarded as only a partial solution.


A better solution is a scenario where voice is transferred using a SIP protocol. All of the multimedia information is converted at the 4G/LTE gateway into a SIP protocol, which then provides reliable transfer to the lift control centre.

The lift industry is experiencing a modernisation boom, and emergency communication systems are no exception. IP technology offers interesting advantages and options to increase added value for users and lift companies.