stop call

Official Hardware Retired GSM Shield
1

Hi i want to make call and stops when arduino receive a sms.
It seems easy but I stick.
Can you help me?

2

Start by posting your code and schematics you have so far.

3

With this code arduino call but not stop.
while (temperature > 26 ){

vcs.voiceCall("xxxxxxxx");
}
vcs.hangCall();

I want when temperature go up 26 then call me but stopping when it drops below 26.

Thanks

4

Hi again,
i need arduino to call me when temp go up 26 and terminate the call when arduino receive a sms.
My problem it is make calling follow.

Thanks