Downloaded Apple 9.01 Friday 9/25/2015 and have not been able to make or receive calls

Hello mcgregrj,

Thank you for contributing to the Apple Support Communities.

If you haven't been able to make or receive calls on your iPhone 5 since updating to iOS 9.0.1, I recommend the following steps from If you can't make or receive calls on your iPhone.

First, check for a carrier settings update. Next, if your iPhone 5 has a SIM card, remove it and then reinsert it.

If the situation continues:

Contact your carrier

When you contact your carrier, check the following:

• Your account is set up to use your iPhone.
• There aren't any localized service outages.
• Your account doesn't have a billing-related block.
• Your calls don't have errors on the carrier system.

Check your network settings

1. Reset your network settings. Tap Settings > General > Reset > Reset Network Settings. This will erase all current saved settings, including Wi-Fi passwords, preferred networks, and VPN settings.
2. Try to make or receive calls in another location.
3. Switch to a different network band. Tap Settings > Cellular and turn off Enable LTE, 4G, or 3G (this option will depend on your carrier and device model).

Still can't make or receive calls?

If you still can't make or receive calls, restore your iPhone as new.
If restoring doesn't fix the issue, contact Apple Support or take your iPhone to an Apple Retail Store or Authorized Service Provider.

All the best.