Question: Why is there no audio coming out from the speaker?

This may be because the volume is adjusted to the lowest level. You can adjust the speaker volume level by using the up and down keys.

Note: There are three types of volume levels.
1. The ring volume when the phone is idle.
2. The speaker volume when the speaker is used to make/receive calls.
3. The handset volume when the handset is used to make/receive calls.

Idle: Volume is set to level7
Speaker: Volume is set to level 8
Handset:Volume is set to level 9