Pinouts.ru talks

English => Interfaces, Pinouts, Cables => Topic started by: pejman on Jul 26, 2005, 10:30

Title: GSM SIM Cards Circuits
Post by: pejman on Jul 26, 2005, 10:30
Hi All,

Does anybody know how to make a Dual SIM Card Circuit?
Maybe this can be done with a BUS redirector circuit using an IC.
Thank you in advance for your help.

Bye.
Title: GSM SIM Cards Circuits
Post by: Anonymous on Oct 08, 2006, 21:44
it is very simple to make gsm dual sim jaket for mobile only IO pin do seprat with the switch for eximple IO pin of mobile conect through switch of sim1 & sim2 other all pin conect parallel so ur mobile read to number with out restrating only one switch side of mobile
for detale messging 00923455209761 by DasNesDace
Title: GSM SIM Cards Circuits
Post by: Anonymous on Oct 09, 2006, 18:27
Thank you for your help.

what kind of ICs can we use to switch between two sim cards?
what is the programming requirements and how can this be done?