GSM mobile phone access library

 Library to access GSM mobile phones through GSM modems or IrDA devices.
 Features include:
 .
  * modification of phone books stored in the mobile phone or on the
   SIM card
  * reading and writing of SMS messages stored in the mobile phone
  * sending and reception of SMS messages
 .
 gsmlib uses standard ETSI GSM 07.07, ETSI GSM 07.05, and others.