scope:

This European Telecommunications Standard (ETS) describes the stage 1 of the Cordless Terminal Handover Additional Network Feature (ANF-CTH) for a Private Integrated Services Network (PISN). Stage one is an overall service description from the user's point of view, but does not deal with the details of the human interface itself.

ANF-CTH is an additional network feature that enables a Cordless Terminal Mobility (CTM) user to maintain a call while moving between overlapping location areas belonging to the same visitor area.

Service specifications are produced in three stages according to the method described in ENV 41005 [1]. This ETS contains the stage 1 specification of the handover additional network feature.

The purpose of the stage 1 specification is to guide and constrain the work at stage 2 and stage 3. Where the text indicates the status of a requirement (i.e. as strict command or prohibition or as authorization leaving freedom as a capability or possibility) this shall be reflected in the text of the relevant stage 2 and stage 3 standards.

Conformance to this ETS is met by conforming to the stage 3 standards with the field of application appropriate to the equipment being implemented. Therefore no method of testing is provided for this ETS.