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Twilio Changelog

Additions and changes to the Twilio platform

Programmable Voice

Maintain Caller-ID when Call Forwarding via Programmable Voice API Beta

A new Calls resource property, CallToken, has been added to the Programmable Voice API. CallToken is an optional parameter that customers can use to forward their calls. A CallToken is generated when an incoming call is received on Twilio. The CallToken is only generated when customers' voice URLs use POST. Customers can now populate the CallToken parameter with the CallToken from the incoming call to forward their calls and maintain the same caller-id from the inbound call on the outbound call. 

In the future in the United States, when SHAKEN/STIR DIV PASSporT is supported by carriers, end to end call authentication will be possible by using the CallToken.