With the release of iOS 26, Apple introduced Call Screening feature. If this feature is enabled on your iPhone, the Apple's Call screening feature stops call forwarding which disables Truecaller Assistant from working as intended.
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How to fix it?
To use our Assistant, you must disable Apple's Call Screening feature. This will allow your phone to forward unanswered calls to our service, as intended.
- Open iPhone Settings > Apps > Phone
- Turn off Call Screening
- Return to Truecaller