Thank you for posting and welcome to the community. I am sorry to hear you are having an issue with the phone service. The signal quality you posted is above average and does not raise a concern. In order to determine the cause of this issue, I will need to know a bit of information.
1. Are you using a wireless phone or corded?
2. How long have you been experiencing this issue?
We're closing this thread since we never got a reply from you. If you still have concerns, please start a new thread and include a detailed explanation so we can more effectively help you.