Member Avatar for davy_yg

Hello,

I am assign to create an SMS Gateway webbased. Any idea how to do so?

I only find this typology for an SMS Gateway: SMS Gateway

Yet, still do not have any clue how to create the web based script for it in order to work.

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  • Latest Post Latest Post by szurcsii

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Two practical routes exist for a web-based SMS gateway: integrate a hosted SMS provider (fast to build, low ops) or run your own gateway (GSM modem or SMPP connection — more control, more work). and are right that a hosted API gets you running quickly; ’s post shows how a local gateway can be called from PHP if you choose the self-hosted path. Below are the core design pieces and a small, safe example to help you decide and start.

  • Public API / UI: an authenticated POST endpoint that accepts destination, message, and metadata.
  • Queue & workers: push requests to a queue (Redis/RabbitMQ) and let background workers send them — avoids web timeouts and supports retries.
  • Provider adapter layer: normalize different providers (HTTP vs SMPP), centralize auth and error parsing.
  • Persistence: store each message with status, provider id, provider message id, retries, timestamps.
  • Webhook receiver: accept inbound messages and delivery receipts, correlate with stored messages.
  • Ops: logging, rate-limiting, monitoring, billing alerts, and secure credential storage (env vars/secret manager).

A minimal PHP example (generic HTTP API, replace placeholders):

function sendSms($to, $text) {
    $apiUrl = 'https://api.example.com/messages';
    $apiKey = getenv('SMS_API_KEY');
    $payload = json_encode(['to'=>$to,'message'=>$text]);

    $ch = curl_init($apiUrl);
    curl_setopt_array($ch, [
      CURLOPT_POST => true,
      CURLOPT_HTTPHEADER => ['Content-Type: application/json','Authorization: Bearer '.$apiKey],
      CURLOPT_POSTFIELDS => $payload,
      CURLOPT_RETURNTRANSFER => true
    ]);
    $resp = curl_exec($ch);
    $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);
    if ($code >= 200 && $code < 300) return json_decode($resp,true);
    throw new Exception("SMS send failed: $code");
}

Production tips: handle character encoding (GSM-7 vs Unicode), multipart messages, delivery receipts and idempotency, exponential backoff for retries, respect provider rate limits, and implement opt-in/STOP handling to meet regulations. If you try a USB GSM modem locally (the self-host option), expect low throughput and SIM/operator limits — suitable for testing, not high-volume sending.

Recommended Answers

All 4 Replies

Member Avatar for gabrielcastillo

Check out cdyne, they have a very easy to use API

Member Avatar for chrishea

Building your own SMS Gateway would be a pretty challenging task. Using the API for an existing SMS Gateway to send and receive SMS messages is pretty easy to do. I have used Twilio and I was able to get it running quite quickly.

Edited by chrishea
Member Avatar for nurul_1

try this iSMS.com.my

Member Avatar for szurcsii

Hi!

To integrate an sms solution with a gateway to your website you will need a php and a html scritps to create it. The html form will send the data of your messages to the php script, and that will forward it to the sms gateway. Use the following codes copied from the website you mentioned to create the two files you need.
Here is an example code for HTML form:

<html>
 <body>
   <h1>My SMS form</h1>
   <form method=post action='sendsms.php'>
   <table border=0>
   <tr>
     <td>Recipient</td>
     <td><input type='text' name='recipient'></td>
   </tr>
   <tr>
     <td>Message</td>
     <td><textarea rows=4 cols=40 name='message'></textarea></td>
   </tr>
   <tr>
     <td> </td>
     <td><input type=submit name=submit value=Send></td>
   </tr>
   </table>
   </form>
 </body>
</html>

and the code for php script:

?php

########################################################
# Login information for the SMS Gateway
########################################################

$ozeki_user = "admin";
$ozeki_password = "abc123";
$ozeki_url = "http://127.0.0.1:9501/api?";

########################################################
# Functions used to send the SMS message
########################################################
function httpRequest($url){
    $pattern = "/http...([0-9a-zA-Z-.]*).([0-9]*).(.*)/";
    preg_match($pattern,$url,$args);
    $in = "";
    $fp = fsockopen("$args[1]", $args[2], $errno, $errstr, 30);
    if (!$fp) {
       return("$errstr ($errno)");
    } else {
        $out = "GET /$args[3] HTTP/1.1\r\n";
        $out .= "Host: $args[1]:$args[2]\r\n";
        $out .= "User-agent: Ozeki PHP client\r\n";
        $out .= "Accept: */*\r\n";
        $out .= "Connection: Close\r\n\r\n";

        fwrite($fp, $out);
        while (!feof($fp)) {
           $in.=fgets($fp, 128);
        }
    }
    fclose($fp);
    return($in);
}



function ozekiSend($phone, $msg, $debug=false){
      global $ozeki_user,$ozeki_password,$ozeki_url;

      $url = 'username='.$ozeki_user;
      $url.= '&password='.$ozeki_password;
      $url.= '&action=sendmessage';
      $url.= '&messagetype=SMS:TEXT';
      $url.= '&recipient='.urlencode($phone);
      $url.= '&messagedata='.urlencode($msg);

      $urltouse =  $ozeki_url.$url;
      if ($debug) { echo "Request: <br>$urltouse<br><br>"; }

      //Open the URL to send the message
      $response = httpRequest($urltouse);
      if ($debug) {
           echo "Response: <br><pre>".
           str_replace(array("<",">"),array("&lt;","&gt;"),$response).
           "</pre><br>"; }

      return($response);
}

########################################################
# GET data from sendsms.html
########################################################

$phonenum = $_POST['recipient'];
$message = $_POST['message'];
$debug = true;

ozekiSend($phonenum,$message,$debug);

?>

P.s.: I found a bulk sms client solution in the website you mentioned. I hope this will help you: <URL SNIPPED>

Edited by peter_budo because: Snippet URL
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