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These plugins are not connected in any way.
Sms notification plugin (Osclass market) Sending notifications in instant messenger new messages
Instant messenger email.php
if($mobile_found){
$name = $send_to_user_name; //Get User Name
$item_url = osc_item_url(); //Get Url of Item Published
$msg = sprintf(__("Dear %s,%s Has sent you message for %s", "smsalert"), $name, $send_from_user_name, $thread_url);
//Message Here
smsalert_sendmsg($mobile, $msg);
}