US 11,877,342 B2
Temporary assignment of emergency route back
Michele Kinsey, Shoreline, WA (US); Adrian T. Synal, Kirkland, WA (US); William Michael Hooker, Seattle, WA (US); and Mohammed Al-Mehdar, Bellevue, WA (US)
Assigned to T-Mobile USA, Inc., Bellevue, WA (US)
Filed by T-Mobile USA, Inc., Bellevue, WA (US)
Filed on Mar. 2, 2021, as Appl. No. 17/190,233.
Claims priority of provisional application 62/985,816, filed on Mar. 5, 2020.
Prior Publication US 2021/0282217 A1, Sep. 9, 2021
Int. Cl. H04W 4/00 (2018.01); H04W 76/50 (2018.01); H04W 76/11 (2018.01); H04W 76/34 (2018.01); H04W 4/90 (2018.01)
CPC H04W 76/50 (2018.02) [H04W 4/90 (2018.02); H04W 76/11 (2018.02); H04W 76/34 (2018.02)] 18 Claims
OG exemplary drawing
 
1. A system comprising:
one or more processors;
a memory; and
one or more components stored in the memory and executable by the one or more processors to perform operations comprising:
receiving, from a user equipment (UE) associated with a wireless telecommunications network, a request to establish an emergency call with a Public Safety Answering Point (PSAP);
identifying that the UE is associated with a non-unique telephone number, and the non-unique telephone number is associated with a hunt group;
temporarily associating an emergency route back number (ERBN) with the UE during the emergency call and at least for at least a period of time after the emergency call has ended;
in response to receiving a subsequent request from the UE to establish a subsequent emergency call with the PSAP prior to an expiry of the period of time after the emergency call has ended, re-starting the predetermined period of time; and
removing the association of the ERBN with the UE upon an occurrence of one or more events after the subsequent emergency call has ended.