Zafar M. Khalid

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San Jose, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Caller discrimination within a telephone system
- Patent number 5,828,742
- Issue date Oct 27, 1998
- Siemens Business Communication Systems, Inc.
- Zafar M. Khalid
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Inband messaging system interface of a PBX
- Patent number 5,473,672
- Issue date Dec 5, 1995
- ROLM Company
- Zafar M. Khalid
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Technique for reducing message notification blockage in voice mail...
- Patent number 5,388,151
- Issue date Feb 7, 1995
- ROLM Systems
- Zafar M. Khalid
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Call transfers by voice messaging system (VMS) integrated to a priv...
- Patent number 5,175,761
- Issue date Dec 29, 1992
- ROLM Systems
- Zafar M. Khalid
- H04 - ELECTRIC COMMUNICATION TECHNIQUE