code: public function call($text, $title, $payload)
      {
          $payload = [
              'template_type' => 'button',
              'text' => $text,
              'buttons' => [
                  [
                      'type' => 'phone_number',
                      'title' => $title,
                      'payload' => $payload,
                  ]
              ],
          ];
  
          $this->setAttachment('template', $payload);
  
          return $this;
      }
docs: Populate call
  
  @param string $text Text
  @param string $title Title
  @param array $payload Payload
  
  @return Message