Jio calls issue fix by  2 methods - 

As you know, Jio is Mukesh  Ambani's ambitious Jio sim has launched during the Note banned, which benefited everyone. JIO  was used free for almost a year. There are some issues with JIO  sim.

1. When jio has come to the market there was the lowest network. All peoples were distressed by JIO. 

2. Getting Started When you wanted to call by Jio Sim, you got network busy or you could not make your call.

3. Some handsets can support JIO sim. Some other handsets support the JIO sim but calls are not possible without JIO voice call. 

The call issue comes with Volte phones. If your phone is LTE then there is no problem.

4. Now a new issue came that your internet is working in a proper way but not a call. You are unable to call and another person also unable to call you. Two issues - 1. Call ended. ( If you call )

2. Out of reach (if someone calls you ) 

3. If your internet is not also working then don't worry. 

Let's talk about how to fix the JIO calls issue. 

JIO  calls issues have been seen from a few days.  These problems are visible to some of the handsets. 

There are 2 ways to fix  Jio calling problem. 

1. Fix calls and internet issues by mobile  Settings. 

If this problem coming to your mobile phone then you have to do some settings in your mobile phone. 

After setting, your phone call will be done and the internet will also run.

Steps to fix jio calls and internet problems. 

. First, go to your phone settings. If you are using any phone you can search for this setting in it.

These settings are applicable to all phones.

First of all, go to the settings of your handset.

b.Now search for  SIM cards & Mobile networks. After the search, you have to click on SIM cards & Mobile networks. 

c. In this step, you have to click on JIO 4G. You can find SIM 1 ( JIO 4G )  at top of mobile screen.  Click on JIO 4G . 

d. Now turn on Jio 4G and click on preferred network. You can search in another mobile for preferred network option. 

e. After click on the preferred network you have need choose Prefer LTE.  

f. Now back to the SIM cards & Mobile networks. Search for VoLTE enabled and enable the VoLTE.

g. Now on IM cards & Mobile networks, you have to search for the internet and select JIO 4G ( If JIO 4G is not set ) 

Now make a call.

If you are unable to fix your problem then try another solution. 

 2. Solve JIO  call problem by calling on customer care number 198 - 

It will work for all handsets without any complexity. In this method, you will need another working JIO phone. 

Call JIO customer number by dialing 198. Express your problem. They will help you. 

If you have any problem regarding this then comment me. 

If your Jio SIM internet is working but calls are not, try these fixes in order:

1. Check Network Mode

Go to Settings → Mobile Network → Jio SIM

Set Preferred Network Type to 5G/4G (LTE) Auto

Make sure VoLTE / HD Calling is enabled.

2. Toggle Airplane Mode

Turn Airplane Mode ON for 30 seconds.

Turn it OFF and wait for the network to reconnect.

3. Restart Your Phone

A simple restart often re-registers your SIM with the network.

4. Check if VoLTE is Working

Jio uses VoLTE for voice calls. If VoLTE is disabled, calls may fail while internet still works.

Look for a VoLTE or HD icon in the status bar.

If you don't see it, enable it from SIM settings.

5. Reset Network Settings

Android: Settings → System → Reset Options → Reset Mobile Network Settings.

iPhone: Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings.

6. Check Call Barring / Call Forwarding

Open Phone app → Settings.

Ensure Call Barring is OFF.

Disable unnecessary Call Forwarding.

7. Verify Your Recharge Plan

Some data-only plans provide internet but not voice calling. Check your active plan in the MyJio app.

8. Test the SIM in Another Phone

If calls work on another phone, the issue is with your device settings.

If calls still don't work, the issue may be with the SIM or network.

9. Check for a Jio Network Outage

There could be a temporary outage in your area.

10. Contact Jio Support

Dial 198 (complaints) or 199 (customer care) from a Jio number.

Or visit Jio Support