Michael GRUN

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Ahrensburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for operating a telephone system with at least two telephony...
- Patent number 8,139,740
- Issue date Mar 20, 2012
- Avaya Inc.
- Dirk Schlossecki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR OPERATING A TELEPHONE SYSTEM WITH AT LEAST TWO TELEPHONY...
- Publication number 20090232293
- Publication date Sep 17, 2009
- AVAYA GMBH & CO. KG
- Dirk SCHLOSSECKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE