Patent ID: 11871212
Assignee: PISMO LABS TECHNOLOGY LIMITED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of identifying a subscriber identity module (SIM) card from one or more communication apparatuses at a SIM directory server, comprising:
a. receiving a request from a wireless communication device;
b. selecting, based on SIM card availability information, a SIM card according to the request;
c. when the SIM card availability information is not determined in a database of the SIM directory server:
i. forwarding the request to the one or more communication apparatuses; and
ii. receiving one or more replies from the one or more communication apparatuses; and

d. sending a reply to the wireless communication device;, wherein the reply comprises one reply of the one or more replies corresponding to the request.