Cisco deskphones - Hardware issues - No Audio
Cisco - No audio when using Headset
1. Make sure your headset is compatible with your phone.
2. Make sure that the cables are properly connected.
• Check if the headset cord is fully connected to the headset jack on the phone.
• Check if the headset volume is adjusted to an appropriate level.
3. Initiate a test call using the headset.
4. Try another headset.
Isolate the issue between the phone and the original headset. Use the spare headset to initiate a test call. If the headset audio is working on the spare headset, then the original headset needs to be replaced. If you are unable to hear anything using the spare headset, the phone may be defective and needs to be replaced.
Cisco - No audio when using Handset
1. Make sure your handset is properly connected your phone.
• Check if the handset cord is fully connected to the handset jack on the phone.
• Check if your phone's volume is adjusted to an appropriate level.
2. Initiate a test call using the phone's handset.
3. Try another handset.
Isolate the issue between the phone and the original handset. Use the spare handset to initiate a test call. If the audio is working on the spare handset, then the original handset needs to be replaced. If you are unable to hear anything using the spare handset, the phone may be defective and needs to be replaced.
Cisco - No audio when using Speaker
1. Check if the speaker volume is adjusted to an appropriate level.
2. Initiate a test call using the speaker phone. If the audio is working, you may be experiencing audio issues related to your network. Go to
Call Quality - VoIP QoS Frequently Asked Questions to learn more. If the speaker audio is not working, the phone may be defective and needs to be replaced.
