To enable call logging
1. Open the Bigin app on your iPhone.
2. Tap the
More 
icon at the bottom right of the screen.
3. Select
Settings 
.
Under "General", you can find the title "Log Outgoing Calls".
4. Enable call logging by tapping the
toggle switch 
.
Once you have enabled call logging, you will receive a prompt to log the call after completing a call through the Bigin app.

Note: To disable call logging, simply tap the
toggle switch 
once again.