Outgoing calls issues

Hi kayoge,

Thanks for posting in Apple Support Communities.

With no sounds being played from your device, make sure that sound isn't being routed to a speaker or Bluetooth device. Go to Settings > Bluetooth and check whether any devices show connected to iPhone.

If nothing is connected, work through the steps below.

1. Remove all screen protectors, films, or cases from your device. 

2. Check the speaker opening to see if it's blocked or dirty. On iPhone only, make sure that the receiver isn't blocked or dirty. 

3. If necessary, clean the speaker or receiver opening with a small, soft-bristled brush. Make sure that the brush is clean and dry.

4. Go to Settings > Sounds (or Settings > Sounds & Haptics), and drag the Ringer and Alerts slider back and forth a few times. If you don't hear any sound, or if your speaker button on the Ringer and Alerts slider is dimmed, your speaker might need service.

5. If you hear sound, try making a call with your iPhone and turn on speakerphone. On iPad or iPod touch, make a FaceTime call. If you still can't hear, or hear static or crackling, then your network or reception could be the issue. Try to call again later, or from a different location.

You can find these steps in If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker.

Regards.