We’ve recently received a few cases where some users are experiencing issues with voice calls after updating their iOS/iPadOS devices to 17.2.
Apple has released version 17.4 to resolve this issue.
Post updates:
03/01/24: Improvements are expected in version 17.4.
03/14/24: As noted in Apple's release notes, for devices running 17.4 or later, improvements have been made when making phone calls and searching contacts on devices with thousands of contacts and Managed Open In restrictions.
