Fix PlayAI iPhone Embed Issue

I need help fixing an issue with a PlayAI agent embedded in a plain HTML page. The embed works fine on Android and desktop but fails on iPhone—greeting plays, then audio and listening stop immediately.

Requirements:
- Ensure correct functionality on iPhone
- Maintain functionality on Android and desktop

Ideal Skills:
- Experience with HTML embeds
- Familiarity with audio handling in web applications
- Knowledge of cross-platform compatibility issues, especially on iOS

I have the embed code ready for you. Please help me solve this issue.