[General] sim900a - ATD response

[hariprasath1976]

Hi

we are using sim900a for call forwarding system. once we call this number not get the response, like other end BUSY , NO ANSWER, CONNECT

we dial the number ATD97665555522;
get NO CARRIER only

please help me ., how to get response

 

[TiagoRibeiro]

Have you ever tried to call another number? Yes or maybe use another chip? This seems like a simple problem. Try it, and come back here to talk about the result. ;-)

 

[andre_luis]

Have you ever tried to call another number? Yes or maybe use another chip? This seems like a simple problem. Try it, and come back here to talk about the result. ;-)

Surely,

Depending on the specific rules of each country / province, there may also be a need to insert the operator telephony company prefix code.



+++