1. Look& feel, such as logo integration, change the them, colors, etc...
2. Show customer their balance and destination call rate in the top of the dialler screen by using get data from our webservice (ASTPP).
3. Register new user and login retuning with ASTPP as SIP User right after installation.
4. Credit X amount to the new created account.
5. Option to recharge the account through Paypal and Google Wallet and Fund Transfer for account balance to other account by the user.
6. Use G.729 codec and other codec that use less bandwidth.
7. Option for customer to find the rate based on the selected currency.
8. Option for customer to contact support via email and chat.
9. Random pop-up message to ask customer for rating/offer discount.
we can done your project