Thanks for help.
We can achieve this by updating api url :
$url = “https://api.twilio.com/2010-04-01/Accounts/$sid/IncomingPhoneNumbers.json?PageSize=1000”;
I have tried this and it works. But I don’t want to change plugin core file as it may overwrite while updating plugins. And as you are using final class for this I can override this function.
Do you have any plan to update this in next version? If yes upto when I can expect next release?