US 12,207,348 B2
Methods and systems of using a plurality of remote subscriber identification module profiles
Uzair Ahmed Chughtai, Kowloon (HK); Man Kit Kwan, New Territories (HK); Yu Yeung, Kowloon (HK); Fawad Ahmed, Karachi (PK); Tomas Šeirys, Kaunas (LT); Azim Ul Islam, Jashore (BD); Chun Kit Chan, New Territories (HK); and Ka Ho Ho, Kowloon (HK)
Assigned to Pismo Labs Technology Limited, Kowloon (HK)
Filed by Pismo Labs Technology Limited, Kowloon (HK)
Filed on Jan. 7, 2022, as Appl. No. 17/571,445.
Application 17/571,445 is a continuation in part of application No. 17/625,731, granted, now 11,968,745, previously published as PCT/IB2021/054675, filed on May 28, 2021.
Prior Publication US 2022/0386102 A1, Dec. 1, 2022
Int. Cl. H04W 8/18 (2009.01); H04W 40/04 (2009.01)
CPC H04W 8/18 (2013.01) [H04W 40/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for a cellular router to control data flow by using a single I/O pin, the method comprising:
a. receiving a first message originated from a wireless communication module (WCM);
b. selecting, based on the first message, a subscriber identification module (SIM) interface;
c. configuring an input-output (I/O) pin to output for sending a second message;
d. sending the second message to a SIM connected to the SIM interface through the SIM interface;
e. configuring the I/O pin to input for receiving a third message; and
f. receiving the third message from the SIM through the SIM interface;
wherein:
the cellular router is configured to respond to the first message using cached information;
the cached information is cached without phrasing; and
the I/O pin is connected to a logic gate and the SIM interface.