Yes, customers can typically retain their existing phone number when switching to Telscape Communications. This process is often referred to as number portability. To initiate this, the customer generally needs to provide specific information, such as their current phone number, the account information associated with that number, and possibly a few other details to confirm ownership. It is important for customers to ensure that their current service provider is not in the process of disconnecting the service while they are switching. This may cause complications with the transfer. For precise procedures and requirements, it is advisable to visit the current Telscape website, where more detailed information regarding number portability can be found. This will help ensure a smooth transition and retention of the desired phone number.