Hello Configuring Siemens SL45i Modem i am trying to send sms from Hyperterminal. i am sending these AT Commands.
AT [i press enter]
OK [Results OK]
AT+CSCA="+0092300000042" [I Enter SMS Center No.]
OK [Resuls OK]
AT+CMGS="+923006660933" [I enter where to send sms]
+CMS ERROR: 500 [Resuls Error]
i am getting this error when try to send sms message. can someone tell me the solution please.