SSH EN 301 440 V1.2.2:1999

Digital Enhanced Cordless Telecommunications (DECT); Integrated Services Digital Network (ISDN); Attachment requirements for terminal equipment for DECT/ISDN interworking profile applications

Scope

The present document specifies the technical characteristics to be provided by terminal equipment which is capable of
connection to a Integrated Services Digital Network (ISDN) and which uses Digital European Cordless
Telecommunications (DECT) for network access. The cordless transmissions for such terminal equipment operate
within the frequency band 1 880 MHz to 1 900 MHz.
A DECT terminal equipment comprises two elements, referred to as a Fixed Part (FP) and a Portable Part (PP). The
objective of the present document is to ensure air-interface interoperability between a FP and PP following the
DECT/ISDN Interworking Profile (IWP) (see note 2), where these parts are capable of 3,1 kHz telephony applications,
and where the FP is connected to the ISDN in order to provide ISDN services (according to TBR 3 [39] and
TBR 4 [40]), over the DECT air interface.
For functional parts of a FP, that are terminal equipment and which are declared to conform to the basic Common
Technical Regulations (CTRs) for DECT (see note 1) and to the DECT/ISDN IWP, the requirements of the present
document shall apply, in addition to the attachment requirements for the appropriate ISDN.
The requirements of the present document is also applicable for the complete set of functionality of a PP declared to
conform to the DECT/ISDN IWP. For a PP, the present document is in addition to the basic CTRs for DECT
(see note 1).
Where a feature is indicated as optional it need not be provided, but where such a feature is provided, the FP and/or PP
shall conform to the requirements and tests of the present document. the present document is structured to allow type
approval of the FP and PP as separate items. For each requirement in the present document, a test is given, including
measurement methods where applicable. The terminal equipment may be stimulated to perform the tests by additional
equipment if necessary.
The present document does not apply to FPs where they form a part of the ISDN.
The present document consists of two parts (A and B) referring to the end system configuration and intermediate system
configuration respectively, were the part B (intermediate system configuration) is expected to be amended at a later
stage.
NOTE 1: The basic CTRs for DECT are the general attachment requirements (CTR 6), requirements for telephony
applications (CTR 10) and requirements for generic access profile (CTR 22). These CTRs are derived
from their respective TBRs (TBR 6 [41], TBR 10 [42], and TBR 22 [43]).
NOTE 2: In the respect of the present document, the DECT/ISDN IWP is based on the provision of access
mappings / interworking requirements of the end system configuration (EN 300 434-1 [9] and
EN 300 434-2 [10]) and of the intermediate system configuration (ETS 300 822 [38]).
NOTE 3: The DECT/ISDN IWP consists of two separate standards, the "end system configuration"
(EN 300 434-1 [9] and EN 300 434-2 [10]) and the "intermediate system configuration"
(ETS 300 822 [38]). The end system configuration describes how ISDN services are offered via a DECT
radio interface, when the ISDN is terminated in the DECT FP. The intermediate system configuration
describes how ISDN is provided over DECT radio interface, with a regenerated ISDN "S" interface in the
DECT PP.