How to change call log display on iPhone
As of version Silent Phone for iPhone 3.2, there is a default setting, that will cause Silent phone calls to be displayed as a native dialer call in the iPhone call logs. Some users may not want their Silent Phone calls to be displayed outside of the Silent Phone app. These steps will show how to set the default setting to prevent this.
Launch Silent Phone and tap the small single silhouette icon in the lower right to open your account profile page. This will display the account settings page.
Next, tap the small cog in the upper right to access the settings page.
From the settings menu, select User Interface.
Now scroll to the last setting and disable Native Call Screen support.