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

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