Documentación SMS API

<?php
$url = "http://api.labsmobile.com/get/send.php?username=acct01@demo.com&password=acct01pwd&msisdn=34672534218&Hi+this+is+your+first+message";
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, true);
$result = curl_exec($ch);
$message = htmlentities('Message has been sent.<br />Details:' . "<br />" . $result);

HttpURLConnectionExample http = new HttpURLConnectionExample();
URL obj = new URL("http://api.labsmobile.com/get/send.php?username=[X]&password=[X]&msisdn=34609036253&sender=SENDER&message=This+is+the+message");
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
con.setRequestMethod("GET");
con.setRequestProperty("User-Agent", "Mozilla/5.0");
int responseCode = con.getResponseCode();

Dim client As WebClient = New WebClient
client.QueryString.Add("username", "xx@xx.xxx")
client.QueryString.Add("password", "xxxxxxxx")
client.QueryString.Add("msisdn", "xxxx")
client.QueryString.Add("message", "This is an example message")
Dim baseurl As String = "http://api.labsmobile.com/get/send.php"
Dim data As Stream = client.OpenRead(baseurl)

require 'net/http'
url = URI.parse('http://api.labsmobile.com/get/send.php?username=[X]&password=[X]&msisdn=34609036253&sender=SENDER&message=This+is+the+message')
req = Net::HTTP::Get.new(url.to_s)
res = Net::HTTP.start(url.host, url.port) { http.request(req) }
puts res.body

WebClient client = new WebClient();
client.QueryString.Add("username", "xx@xx.xx");
client.QueryString.Add("password", "xxxxxxxx");
client.QueryString.Add("msisdn", "xxxx");
client.QueryString.Add("message", "This is an example message");
string baseurl ="http://api.labsmobile.com/get/send.php";
Stream data = client.OpenRead(baseurl);