Twillio Notify Bulk Sms With Custom Number

I want to send bulk sms using twillio notify in php having a custom text in place of the number (“From”) but dont seem to know how to go about it. Am using a messaging service. I would like to show the custom text instead of my sending number when the message is sent. Below is my code for sending the message

   <?php
require_once '/path/to/vendor/autoload.php';

use TwilioRestClient;

$accountSid = "your_account_sid";
$authToken = "your_auth_token";
$serviceSid = "ISXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";

$client = new Client($accountSid, $authToken);

$recipients = array($num1, $num2, ...); // Your array of phone numbers

$binding = array();
foreach ($recipients as $recipient) { 
    $binding[] = '{"binding_type":"sms", "address":"+1'.$recipient.'"}'; // +1 is used for US country code. You should use your own country code.
}

$notification = $client
->notify->services($service_sid)
->notifications->create([
    "toBinding" => $binding,
    "body" => $text
]);
?>