The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 1995
Filed:
Feb. 10, 1994
Daniel A Harrington, Menlo Park, CA (US);
Maura E Higgins, Mountain View, CA (US);
Ivan M Lee, Fremont, CA (US);
Joseph D Remson, Phoenix, AZ (US);
Kenneth E Waln, San Jose, CA (US);
Rolm Company, Santa Clara, CA (US);
Abstract
Interconnecting a messaging system (voice, facsimile, and so forth) with a PBX which provides entirely digital voice transmission and which provides high bandwidth and redundant transmission of control information between the messaging system and the PBX. The telephone system includes: (a) a telephone switching system including an interface to one or more digital links, the interface for supplying control and voice information relating to a call over one of the digital links and for receiving other control and voice information relating to the call or to another call over the digital link, the other control and voice information relating to another call including information relating to In-Band Message Notification (IBMN); (b) a messaging system for receiving a portion of the control information and a portion of the voice information relating to the call from the telephone system and for transmitting the other control and voice information to the telephone system; and (c) a messaging system interface between the digital links and the messaging system, the messaging system interface for receiving the control and voice information from the digital link and for supplying the portion of the control information and the voice information from the call to the messaging system and for transmitting the other control and voice information received from the messaging system over the digital link.