iphone7 no outgoing calls

Try first to optimize the range of the mobile network, see this Apple article:

If you see No Service or Searching on your iPhone or iPad

If you see No Service or Searching on your iPhone or iPad - Apple Support

👉 , see -> iPhone 7 Repair Program for "No Service" Issues

iPhone 7 Repair Program for "No Service" Issues - Apple Support

See also this Apple article: If you can't make or receive calls on your iPhone

If you can't make or receive calls on your iPhone - Apple Support

-> contact your carrier.

pommygun ~ 76% is not healthy and is to be expected in a 5½ year-old battery. Have the weak battery replaced and all will be well:

iPhone Battery & Power Repair

About genuine iPhone batteries

Repair Provider Verification

(Articles found by searching Apple's Knowledge Base.)

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pommygun ~ Does your iPhone 7 still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health

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