Gsm sim300 - cms error:515

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KEERTHANA.S

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Hi,
am able to send sms from sim900. but i am not able to send sms from sim 300 using the same sim.. when i tried it with sim300,
i.e at+cmgs="xxxxxxxxxx"
> hai
+cms error:515..
what is the solution for it
 

Try the following sequence
Code:
AT+CMGF=1 ;;As u have used in sim900 also
Now try this 
AT+CSCA="+XXXXXXX"  //Set your SMS Center's number, you have to check with your provider about this number
And then Finally Do 
AT+CMGS="number"
 
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