With Telstra Voice Control it doesn't stop there - with access to your Calls Lists from your Telstra TVC-C product in Telstra Voice Control ; you can check and return any important calls before you've even returned home. Stay Up To Date Telstra Voice Control supports updates for your Telstra TVC-C products therefore, check in every now and then to see if there is an update for your Telstra TVC-C product.We will also be updating the app regularly to introduce new languages as and when the become available from Alexa along with display languages to support for your Telstra TVC-C product.