BaseInternal::getDefaultSender

public function getDefaultSender();

/**
 * Set default sms sender alias.
 * @param string $sender Sender alias.
 * @return $this
 */
abstract public function setDefaultSender($sender);

/**
 * Check can use state of provider.
 * @return bool
 */
public function canUse()
{
	return ($this->isRegistered() && $this->isConfirmed());
}