Generic access profile
Encyclopedia
The Generic Access Profile (GAP) (ETSI standard EN 300 444) describes a set of mandatory requirements to allow any conforming DECT Fixed Part (base) to interoperate with any conforming DECT Portable Part (handset) in order to provide basic telephony services when attached to a 3.1 kHz telephone network (as defined by EN 300 176-2).
The objective of GAP is to ensure interoperation at the air interface (i.e. the radio connection) and at the level of procedures to establish, maintain and release telephone calls (Call Control). GAP also mandates procedures for registering Portable Parts to a Fixed Part (Mobility Management).
So if you buy a GAP-compliant handset from one manufacturer it should work, at the basic level of making calls, with a GAP-compliant base from another manufacturer. They will not necessarily be able to access advanced features of the base station, such as phone book synchronization or remote operation of an answering machine
built into the base. Most consumer-level DECT phones and base stations support the GAP profile, even ones that do not publicize this feature, and thus can be used together. However some manufactures lock their systems so that they will not interoperate or provide bases that cannot register new handsets.
The GAP does not describe how the Fixed Part is connected to the external telephone network.
The objective of GAP is to ensure interoperation at the air interface (i.e. the radio connection) and at the level of procedures to establish, maintain and release telephone calls (Call Control). GAP also mandates procedures for registering Portable Parts to a Fixed Part (Mobility Management).
So if you buy a GAP-compliant handset from one manufacturer it should work, at the basic level of making calls, with a GAP-compliant base from another manufacturer. They will not necessarily be able to access advanced features of the base station, such as phone book synchronization or remote operation of an answering machine
Answering machine
The answering machine or message machine, also known as the telephone answering machine in the UK and some Commonwealth countries) and previously known as an ansaphone, ansafone, or telephone answering device is a device for answering telephones and recording callers' messages.Unlike voicemail,...
built into the base. Most consumer-level DECT phones and base stations support the GAP profile, even ones that do not publicize this feature, and thus can be used together. However some manufactures lock their systems so that they will not interoperate or provide bases that cannot register new handsets.
The GAP does not describe how the Fixed Part is connected to the external telephone network.
See also
- Digital Enhanced Cordless TelecommunicationsDigital Enhanced Cordless TelecommunicationsDigital Enhanced Cordless Telecommunications , usually known by the acronym DECT, is a digital communication standard, which is primarily used for creating cordless phone systems...
- European Telecommunications Standards InstituteEuropean Telecommunications Standards InstituteThe European Telecommunications Standards Institute is an independent, non-profit, standardization organization in the telecommunications industry in Europe, with worldwide projection...
- GSM Interworking Profile