US 12,244,764 B2
Captioned telephone service system for providing original number service and anti-spam function
Wonjae Cha, Irvine, CA (US); Jong Oh Choi, Siheung (KR); and John Lee, Irvine, CA (US)
Assigned to Mezmo Corporation, Buena Park, CA (US)
Filed by Mezmo Corporation, Buena Park, CA (US)
Filed on Aug. 17, 2022, as Appl. No. 17/890,211.
Prior Publication US 2024/0064232 A1, Feb. 22, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04M 3/436 (2006.01); H04M 3/42 (2006.01)
CPC H04M 3/436 (2013.01) [H04M 3/4211 (2013.01); H04M 3/42382 (2013.01); H04M 3/42391 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A captioned telephone service (“CTS”) system for blocking spam calls, comprising:
a CTS server for providing a transcription service to a user of the CTS system; and
a database which stores information about the user, wherein the CTS server is constructed to be connected to a CTS user's equipment which is associated with a CTS number and an original phone number such that the CTS number is assigned by a CTS provider and the original phone number is assigned by a carrier,
wherein the CTS user's equipment is configured to place or receive a phone call by using either the CTS number or the original phone number,
wherein the CTS server is configured to allow the user to elect to use an original number service such that the user places a phone call to a peer using the CTS number in order to use the transcription service, but the original phone number is displayed as a caller identification (“caller ID”) on a communications device of the peer by the CTS server,
wherein if the user elects to use the original number service and a call drop service and a setting for call forwarding to forward a call directed to the original phone number to the CTS number is completed, the CTS server is configured to consider a call, directed to the CTS number, as a spam call and drop the call.