Call was disconnecting automatically

Hey SaiPrudhvi,

Thanks for the update. While this article says can't make or receive calls, there are a few things that may be able to help.

"Update your software

1. Check for a carrier settings update.
2. Check for an iOS software update. Some updates might require a Wi-Fi connection.

Remove and reinsert your SIM card

If your iPhone has a SIM card, remove the SIM card, then reinsert it.

Contact your carrier

When you contact your carrier, make sure that:

• 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. Go to 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. Go to Settings > Cellular > Cellular Data Options > Enable LTE and turn off Enable LTE, 4G, or 3G (this option will depend on your carrier and device model).

Get more help

If you still can't make or receive calls, restore your iPhone as new. If restoring doesn't fix the issue, contact Apple Support, then follow the steps to complete your request."

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

Thank you for using Apple Support Communities. Have a good one.

Hi SaiPrudhvi,

Thank you for contacting Apple Support Communities. Based on what you stated, it seems like calls are disconnecting after 1 minute. Try updating the carrier settings.

Update your carrier settings on your iPhone or iPad

Please don't hesitate to let us know if the steps resolved your issue or if you need additional assistance.

Cheers.