To adjust the volume
1. Open the flip and press Ok [MENU]
2. Press 9 [Settings]
3. Press 1 [Sound]
4. Press 2 [Volume]
5. Use the Navigation Key to scroll to Master Volume.
6. Adjust the volume and press Ok.

how can i turn up the voluome on incoming calls

The manual can be downloaded here in our website from the LG 231 product page.

Link: https://www.cellphones.ca/cell-phones/lg-231/