Cox Communications is experiencing an outage of voice service across the southwest region today. Cox is aware of the issue and is working to resolve it.
For residential service troubleshooting, see https://www.cox.com/residential/support/outages.html
For business service troubleshooting, see https://www.cox.com/business/support/voice.html
For a confidential discussion of your situation or to get some help, give your Technology Partner a call.
The LeeShanok Team
Tucson: (520) 888-9122
Phoenix: (602) 277-5757