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Tutorials, WebRTC

Blind vs attended transfer in WebRTC: how Browser Phone handles both

Justin

30 April 2026

Blind and attended call transfer in WebRTC look simple from the outside but involve REFER…

Browser Phone

Browser Phone 0.3.x is available as a free, open source project available at: https://github.com/InnovateAsterisk/Browser-Phone

The Browser Phone project version 4.0 will be developed under Siperb. Siperb WebRTC powered Softphone is already hosted and offers a mobile version, and the necessary SIP to WebRTC proxy to connect to your PBX.

The Siperb Softphone is released as both a Web Application, and a Mobile Application for both Android and Apple devices. The Mobile application and the Web Application is featured with Push notifications for inbound calls.

Siperb offers much more, including: Hosting, Provisioning, Transcoding (from DTLS to regular RTP), and a complete history of calls and conversations. For more information on Siperb visit: https://www.siperb.com/

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Blind vs attended transfer in WebRTC: how Browser Phone handles both