Modem NT1

The NT1 is a network termination for the ISDN basic rate access, which adds to the features of a standard ISDN network termination (NT1) a dual interface to analogue terminals designed for connection to POTS (Plain Old Telephone System) networks.

These terminals include standard phone sets, group three fax machines, automatic answering machines, data modems, small Private Branch Exchanges (PBX), Key Telephone Systems (KTS), cordless and DECT phones, etc. The NT1 therefore allows network providers to overcome a major obstacle to the diffusion of ISDN in the Small Office And Home Office (SOHO) and in the residential markets: network providers can offer a complete ISDN service, aligned to current regulations and, at the same time, subscribers are not required to purchase any additional equipment, such as digital ISDN phones and/or terminal adapters to deploy basic telephony services.