我们被问得最多的问题。

WebRTC vs SIP, which do I use for a browser or an AI agent?

What do SIP response codes mean, and why did I get a 503?

What is a call detail record (CDR)?

What is a SIP trunk, and do I need one?

什么是语音 AI 代理，它如何连接到电话网络？

什么是语音 API？

What is SIP?

What is STIR/SHAKEN, and what are attestation levels A, B and C?

What is toll fraud, and how does Bird limit it?