Siemens Aktiengesellschaft

Unify Gmbh Co. Kg

Siemens Enterprise Communications Gmbh & Co. Kg

Otto Schröter

Claus Rist

Michael Volkmann

Andreas Marschall

The invention relates to a method for providing Voice over IP (VoIP) in a communication system with a number of terminals operating with VoIP, between which a transmission of voice data according to VoIP or a signalling is achieved, wherein the signalling is achieved using the Computer Supported Telecommunication Application (CSTA) interface standard. Telephone services can be controlled by a computer using the CSTA protocol. As for conventional application, H323 protocol and SIP are used for IP telephony processing of audio/video streams of a conversation. The invention is based on replacing H323 protocol and SIP by a CSTA protocol only when the latter is correspondingly extended.

Method and communication terminal for providing VoIP

There is described a method of sending CTI messages in a communications system. The method comprises assigning to each of a plurality of CTI messages a priority indicator selected from a plurality of different priority indicators, sending the plurality of CTI messages from a queue formed by the CTI messages such that the time interval between two messages sent from the queue depends upon the priority indicator assigned to the first of the two messages to be sent, whereby the time interval between messages being sent from the queue may vary.

Method of sending CTI messages in a communication system

The invention relates to a method and configuration for controlling and/or monitoring terminals connected to a communications system. In order to control and/or monitor terminals, which are connected to a communications system and which have at least one controllable/monitorable function, an application sends a first message with the call number of a terminal, which is to be controlled and/or monitored thereby, to a telephony server. This telephony server conveys this call number to the communications system that, as a response, conveys terminal information via the controllable/monitorable functions of the relevant terminal. The telephony server comprises a database with data records that describe controllable/monitorable terminals, and comprises at least one data record which can be supplemented and which contains an identification number. This data record can be supplemented with the call number and the information concerning said terminal, whereby the telephony server generates another supplementable data record with another identification number. The telephony server conveys the call number and the terminal information to the application from the supplemented data record. The terminal can thus be controlled/monitored by the application.

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Essen, Germany

Otto Schröter