×

Telephone-conferencing apparatus and method

  • US 4,317,961 A
  • Filed: 03/23/1979
  • Issued: 03/02/1982
  • Est. Priority Date: 03/23/1979
  • Status: Expired due to Term
First Claim
Patent Images

1. Caller-initiated telephone conferencing apparatus comprisingcaller-responsive input means for concurrently receiving a plurality of incoming telephone line calls over an associated plurality of incoming telephone lines and including means for responding to a signaling indication on any incoming telephone line for conditioning the line for communication, andswitching means responsive to said input means for automatically connecting the conditioned lines associated with said incoming calls to a conference grouping wherein any of said associated incoming lines in the grouping provides communication with all other lines connected to said grouping and said grouping has the capacity of at least three incoming calls.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×