Application program interface
AssigneeAlcatel
InventorFrank Bergler
Life of this patent
Estimating the term…
Abstract
An application program interface for integrated services digital networks is implemented so that application programs can be generated independently of network protocols (Layer 1, 2; 1TR6, VN2) and independently of the respective implementation of service features. The application program interface contains for each network service an independent service program module (Telephony, FAX, Packet data, Teletex, . . . ) with a message set representing procedures as specified by standards (CCITT, ETSI, . . . ).
Claims11
Signal processing apparatus comprising:
- a signal processor for at least executing a plurality of application program modules (App1, App2, App3);
- memory means, connected to said signal processor, for storing the plurality of application program modules (App1, App2, App3);
- and
- an application program interface (API) for providing an exchange of messages between the plurality of application program modules (App1, App2, App3) and a network interface (ACID) of an integrated services digital network (ISDN) supporting a plurality of services, the ACID being connected to said signal processing apparatus, wherein the application program interface (API) includes a service program module (packet data, Telephony, Teletex, FAX Gr 3/4) for each service of the network, each service program module containing a message set representing specified procedures for the individual network service.
An application program interface (API) for exchanging messages between a plurality of application program modules (App1, App2, App3), which are stored in a memory means and executed by a signal processor, and a network interface (ACID) of an integrated services digital network (ISDN) supporting a plurality of services, said API comprising:
- a first interface between said plurality of program modules (App1, App2, App3) and said API;
- a second interface between said API and said ACID;
- and
- a plurality of service program modules (packet data, Telephony, Teletex, FAX Gr 3/4) contained in said API, each service program module corresponding to one of the network services and containing a message set representing specified procedures for the particular network service.
Dependencies are inferred from the claim text.