code: public static Recipient[] toRecipient(PhoneNumber[] to) {
  		Recipient[] addresses = new Recipient[to.length];
  		int i = 0;
  		for (PhoneNumber t : to) {
  			addresses[i++] = new Recipient(t);
  		}
  		return addresses;
  	}
docs: Converts a list of phone numbers to a list of recipients.
  
  @param to
  the list of phone numbers
  @return the list of recipients