Terminal emulator station inteface telephone exchange of ISDN basic access to customer premises equipment.

摘要

Apparatus telephone switching to provide a communications connection to a digital subscriber line (DSL) which is used to provide digital connectivity to a switch exchange (CO) comprising: termination means for providing a physical connection point to point said DSL, wherein communications over said DSL the use an ISDN protocol interface (BRI) and wherein the communications connection is intended to be between the DSL and a plurality of user station terminals; means for controlling said termination means for emulating a plurality of station terminals exchange (CO) compatible with BRI that are to be connected to said DSL so that the terminal user station can access BRI services including services additional telephone exchange; said means for controlling said termination means including means for effecting a plurality of initialization procedures in said apparatus switched telephone to the telephone exchange identifies at least one of said plurality of terminals of emulated CO station as an ISDN BRI terminal with a respective identifier (USID / TID); wherein said termination means is adapted to receive a message during a call from the telephone exchange, said message comprising the identifier (USID / TID), and wherein the message is received in the middle of termination by the terminal station CO emulated identified by the identifier (USID / TID); wherein each of said terminals user station is associated with at least one terminal emulated CO station, said means being adapted for controlling said termination means to offer the call from the telephone exchange to all station terminals user terminal associated with the emulated CO station receiving the message; said means for controlling said mediosde termination to store relationships function buttons terminal user station and speed dial buttons station terminal user with virtual feature buttons and virtual speed dial buttons corresponding to associated terminals terminals emulated CO station.