Iphone only intercepts calls, not text messages.

Short message interception can only be turned on if phone interception is turned on. The reason why iphone only intercepts calls and does not intercept short messages is because only phone interception is turned on in the settings, so it can only intercept calls, not short messages, or turn on short message interception in the settings, so that both strange short messages and phone calls can be intercepted. When setting up strange SMS and phone interception, you need to find the settings first, then select information in the settings, select unknown and filter information, and then click Filter Unknown Sender to intercept SMS.