iOS Call Screening can cut the call right after the screening phase, especially if the transfer timing or caller ID changes. Even if the assistant responds correctly, iPhone may still auto-drop if it flags it as suspected spam or detects a “handoff” pattern. You can try these, Make sure the caller ID is fully registered (CNAM + STIR/SHAKEN attestation A level). Avoid changing caller ID during transfer. Add a short human-like pause before transfer (don’t transfer immediately after screening). Test with a soft warm handoff instead of a hard transfer. I can help you review your call flow and pinpoint exactly where it’s breaking.