Chat SDK adds AgentPhone support
Chat SDK now gives AI bots their own phone number. One webhook, one thread, voice + SMS unified.

Why it matters
Developers can now deploy multimodal AI agents across voice and text channels without building separate integrations—lowering the friction to production AI applications that handle real-time customer interaction.
The key facts
10 to knowChat SDK now supports AgentPhone with .vendor-official adapter
Single webhook handles both calls and messages
Call transcripts delivered as messages for unified bot response
Voice and SMS maintain context in single thread
Launched June 1, 2026 by Vercel
Chat SDK adds AgentPhone support via .vendor-official adapter
Single webhook handles calls and messages to same number
Call transcripts delivered as messages for SMS/iMessage response
Unified thread maintains context across voice and text channels
Eliminates need for separate pipelines per channel
Go to the source
Vercel Blogvercel.com
Publisher excerpt: Chat SDK now supports AgentPhone with the new .vendor-official adapter Give your bot its own phone number so it can handle voice calls and text messages using the same handlers you already write. When a call ends, the transcript is delivered as a message, allowing your bot to respond via SMS or…