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H04Q2213/385

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HELECTRICITY H04Electric communication H04QSELECTING H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems

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H04Q2213/385Traffic in PBX to and from public exchange

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Patents Grantslast 30 patents

Information Patent Grant
Method for establishing data connections in an auxiliary exchange c...
- Patent number 5,715,300
- Issue date Feb 3, 1998
- Siemens Aktiengesellschaft
- Roger Lybeer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Terminal adapter pooling system for ISDN
- Patent number 5,319,700
- Issue date Jun 7, 1994
- Kabushiki Kaisha Toshiba
- Hiroshi Mano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents