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???
10/18/08 08:17
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#159179 - GSM AT Commands and SIMs
Responding to: ???'s previous message
Satheesh Kumar.p said:
1)can all gsm modem is compatible with AT commands

Yes it is part of the GSM requirements that they must support the standard GSM AT Command Set:

07.07 AT command set for GSM Mobile Equipment (ME)

07.05 Use of (DTE - DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS)

Click on 'Links' and look for the link to "All GSM Specificatios"...


2)can all sim card is compatible with gsm modem


They are physically compatible, but you may need a specially provisioned SIM to use data facilities - check with your Service Provider.

There are also various different operating voltages for SIMs - make sure your modem is compatible.

List of 4 messages in thread
TopicAuthorDate
AT Command compatibility            01/01/70 00:00      
   GSM AT Commands and SIMs            01/01/70 00:00      
      Replay GSM AT Commands and SIMs            01/01/70 00:00      
      Incompatibility            01/01/70 00:00      

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