scope:

This European Telecommunication Standard (ETS) specifies that set of technical requirements for Digital Enhanced Cordless Telecommunications (DECT) Fixed Part (FP) and DECT Portable Part (PP) necessary for the support of the Cordless Terminal Mobility (CTM) Access Profile (CAP).

The objective of the ETS is to ensure the air interface interoperability of DECT CAP PPs and DECT CAP FPs if applied.

The CTM service allows users of cordless terminals to be mobile within and between networks. Where radio coverage is provided and the cordless terminal has appropriate access rights the user shall be able to make calls from, and to receive calls at, any location within the fixed public and/or private networks, and may move without interruption of a call in progress.

This ETS covers the DECT access requirements for CTM phase 2 as defined in the CTM phase 2 service description, DE/NA-010061 [14].

The main objectives of the CAP are:

- maintain compatibility with the DECT Generic Access Profile (GAP), identifying only components not mandatory in the GAP to be added to obtain capabilities needed in the CTM context;

- maintain compatibility with ETS 300 175 [1] to [8], for procedures not defined in the GAP.

The CTM access profile is seen as an extension of the GAP mandatory base covering the requirements for CTM phase 2.

CAP supports telephony teleservice and provides 32 kbit/s Adaptive Differential Pulse Code Modulation (ADPCM) speech bearer service.

CTM supplementary services with no impact on the air interface are not considered in the CAP.