Blocking Of SMS Transmission Doubt

Hello friends ,
I want to block sms Transmission of GSM module connected to micro controller with help of mobile
what r the possibilities .

remotely? its not possible...
[Topic moved to Embedded GSM Development Forum]

Actually i did it by turning ON and OFF Relay attached across transmission line of GSM module its working fine do u have some another option???????

ah..! you mean turning GSM module on/off. I thought you're saying to disable functionality of sending sms in GSM module, obviously that is not possible.

No i don't want to turn off gsm module if i do this it is not possible for module to receive any msgs next time rather i want to block the transmission line of gsm but at the same time there should not be any kind of disturbance to reception of gsm

I think whatever you did is fine, but instead of relay you can use simple transistors type circuit to make circuit look small. I do not understand why you wan to do this.

What kind of transistor ckt could u pls post here schematic

Simple Transistor as switch will work for this purpose.