Twilio's Bring Your Own Carrier (BYOC) Trunking for Programmable Voice allows businesses to maintain their existing PSTN voice carrier(s) and phone numbers while adding Twilio Programmable Voice capabilities. This new offering enables companies to customize their calling experience, add programmability without changing carriers, and overcome barriers such as porting difficulties or infrastructure investments. With BYOC Trunking, developers can build applications once with Twilio's APIs and use them with any PSTN carrier(s) in combination with Twilio's Super Network. This solution provides flexibility, intelligence, and better customer experiences while maintaining existing relationships with carriers.