diff --git a/src/components/panel/MessageComposer.tsx b/src/components/panel/MessageComposer.tsx
index 386e40b..4cd3298 100644
--- a/src/components/panel/MessageComposer.tsx
+++ b/src/components/panel/MessageComposer.tsx
@@ -5,21 +5,41 @@ import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Card } from "@/components/ui/card";
 import { toast } from "sonner";
+import { createClient } from "@supabase/supabase-js";
+
+const supabase = createClient(
+  import.meta.env.VITE_SUPABASE_URL,
+  import.meta.env.VITE_SUPABASE_ANON_KEY
+);
 
 export function MessageComposer() {
   const [message, setMessage] = useState("");
   const [phoneNumber, setPhoneNumber] = useState("");
+  const [isSending, setIsSending] = useState(false);
 
-  const handleSend = () => {
+  const handleSend = async () => {
     if (!message.trim() || !phoneNumber.trim()) {
       toast.error("Please enter both phone number and message");
       return;
     }
-    
-    // Mock send functionality
-    toast.success("Message sent successfully!");
-    setMessage("");
-    setPhoneNumber("");
+
+    setIsSending(true);
+    try {
+      const { data, error } = await supabase.functions.invoke('send-sms', {
+        body: { phoneNumber, message }
+      });
+
+      if (error) throw error;
+
+      toast.success("Message sent successfully!");
+      setMessage("");
+      setPhoneNumber("");
+    } catch (error) {
+      console.error('Error sending message:', error);
+      toast.error("Failed to send message. Please try again.");
+    } finally {
+      setIsSending(false);
+    }
   };
 
   return (
@@ -40,6 +60,7 @@ export function MessageComposer() {
               value={phoneNumber}
               onChange={(e) => setPhoneNumber(e.target.value)}
               className="w-full"
+              disabled={isSending}
             />
           </div>
           <div className="space-y-2">
@@ -55,14 +76,16 @@ export function MessageComposer() {
               value={message}
               onChange={(e) => setMessage(e.target.value)}
               className="w-full"
+              disabled={isSending}
             />
           </div>
           <Button
             onClick={handleSend}
             className="w-full group hover:shadow-md transition-all"
+            disabled={isSending}
           >
             <Send className="mr-2 h-4 w-4 group-hover:scale-110 transition-transform" />
-            Send Message
+            {isSending ? "Sending..." : "Send Message"}
           </Button>
         </div>
       </div>
diff --git a/supabase/functions/_shared/cors.ts b/supabase/functions/_shared/cors.ts
new file mode 100644
index 0000000..765bfe2
--- /dev/null
+++ b/supabase/functions/_shared/cors.ts
@@ -0,0 +1,5 @@
+
+export const corsHeaders = {
+  'Access-Control-Allow-Origin': '*',
+  'Access-Control-Allow-Headers': 'authorization, x-client-info, apikey, content-type',
+}
diff --git a/supabase/functions/send-sms/index.ts b/supabase/functions/send-sms/index.ts
new file mode 100644
index 0000000..f42a253
--- /dev/null
+++ b/supabase/functions/send-sms/index.ts
@@ -0,0 +1,47 @@
+
+import { serve } from 'https://deno.land/std@0.168.0/http/server.ts'
+import { corsHeaders } from '../_shared/cors.ts'
+import { createClient } from 'https://esm.sh/@supabase/supabase-js@2'
+
+serve(async (req) => {
+  // Handle CORS
+  if (req.method === 'OPTIONS') {
+    return new Response('ok', { headers: corsHeaders })
+  }
+
+  try {
+    const { phoneNumber, message } = await req.json()
+    const twilioAccountSid = Deno.env.get('TWILIO_ACCOUNT_SID')
+    const twilioAuthToken = Deno.env.get('TWILIO_AUTH_TOKEN')
+    const twilioPhoneNumber = Deno.env.get('TWILIO_PHONE_NUMBER')
+
+    if (!twilioAccountSid || !twilioAuthToken || !twilioPhoneNumber) {
+      throw new Error('Missing Twilio credentials')
+    }
+
+    const twilioUrl = `https://api.twilio.com/2010-04/Accounts/${twilioAccountSid}/Messages.json`
+    const response = await fetch(twilioUrl, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/x-www-form-urlencoded',
+        Authorization: `Basic ${btoa(`${twilioAccountSid}:${twilioAuthToken}`)}`,
+      },
+      body: new URLSearchParams({
+        To: phoneNumber,
+        From: twilioPhoneNumber,
+        Body: message,
+      }),
+    })
+
+    const result = await response.json()
+    return new Response(JSON.stringify(result), {
+      headers: { ...corsHeaders, 'Content-Type': 'application/json' },
+      status: 200,
+    })
+  } catch (error) {
+    return new Response(JSON.stringify({ error: error.message }), {
+      headers: { ...corsHeaders, 'Content-Type': 'application/json' },
+      status: 400,
+    })
+  }
+})