US 12,284,582 B2
Inaudibly notifying a caller of a status of an open-line call
Hsin-Fu Henry Chiang, Bellevue, WA (US); and William Michael Hooker, Bellevue, WA (US)
Assigned to T-Mobile USA, Inc., Bellevue, WA (US)
Filed by T-Mobile USA, Inc., Bellevue, WA (US)
Filed on Mar. 15, 2022, as Appl. No. 17/695,642.
Prior Publication US 2023/0300589 A1, Sep. 21, 2023
Int. Cl. H04M 11/04 (2006.01); G08B 6/00 (2006.01); H04M 3/51 (2006.01); H04W 4/029 (2018.01); H04W 4/12 (2009.01); H04W 4/90 (2018.01); H04W 76/11 (2018.01)
CPC H04W 4/90 (2018.02) [G08B 6/00 (2013.01); H04M 3/5116 (2013.01); H04W 4/029 (2018.02); H04W 4/12 (2013.01); H04W 76/11 (2018.02)] 18 Claims
OG exemplary drawing
 
1. At least one computer-readable storage medium, excluding transitory signals and carrying instructions to inaudibly notify a caller of a status of an open-line call, which, when executed by at least one data processor of a system, cause the system to:
receive a session initiation protocol (SIP) call from a mobile device associated with the caller,
wherein the SIP call includes a setup phase and a data transfer phase,
wherein the setup phase precedes the data transfer phase,
wherein the setup phase includes an exchange of multiple fields, and,
wherein a field among the multiple fields indicates that the SIP call is the open-line call;
receive a first indication that a device associated with the callee has generated a notification to the callee of the SIP call;
upon identifying the SIP call as the open-line call and receiving the first indication, send a first message to the mobile device associated with the caller that the device associated with the callee has generated the notification,
wherein the first message indicates to the mobile device associated with the caller to generate a first inaudible notification indicating that the device associated with the callee generated the notification;
receive a second indication that the callee has answered the SIP call; and
upon identifying the SIP call as the open-line call and receiving the second indication, send a second message to the mobile device associated with the caller indicating that the callee has answered the SIP call,
wherein the second message indicates to the mobile device associated with the caller to generate a second inaudible notification indicating that the callee has answered the SIP call, and,
wherein the first inaudible notification and the second inaudible notification are different.