scope:

This European Telecommunication Standard (ETS) specifies how Integrated Services Digital Network (ISDN) services may be provided over Digital Enhanced Cordless Telecommunications (DECT) endsystem configurations. Apparatus claiming interoperability based upon the ISDN Access Profile (IAP) shall fully comply with the process mandatory technical requirements and those for optional features so far such are provided. Both public ISDN and private ISDN are within the scope of this ETS.

An IAP is specified, defining how particular ISDN services are supported, so that inter-operability of DECT equipment can be achieved at the air interface for these services. Apparatus claiming the provision of any service feature listed in this ETS should comply with the corresponding process mandatory technical requirements. The following ISDN bearer services are covered:

- speech;

- 3,1 kHz audio; and

- unrestricted digital information 64 kbit/s.

Applications using these bearer services are outside the scope of this ETS. However, such applications envisaged include 3,1 kHz telephony, 7 kHz telephony, group 4 fax, teletex, videotex, and voice-band data transmission such as group 3 fax and modem data transmission.

The bearer service "packet mode" is outside the scope of this ETS.

The support of ISDN supplementary services is considered.

The DECT end system reference configuration is used where the DECT Fixed System (DFS) and DECT Portable System (DPS) together form an end system with the behaviour of an ISDN Terminal Equipment (ISDN-TE).

Mobility Management (MM) such as location registration, and subscription registration is outside the scope of this ETS.