CPC H04W 8/183 (2013.01) [H04L 12/1403 (2013.01); H04L 12/1464 (2013.01); H04L 12/4633 (2013.01); H04L 63/0853 (2013.01); H04W 8/205 (2013.01); H04W 12/06 (2013.01); H04W 88/06 (2013.01)] | 20 Claims |
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.
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