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getting 'call failed' whenever answering incoming call, and nothing happens when I call out.

Christo_3322266
SMARTY Pioneer
SMARTY Pioneer

‎29-05-2025 21:19 PM - last edited on ‎30-05-2025 11:17 AM by SMARTY Moderator SMARTY Moderator

This is urgent! I cannot receive or make calls. 

Any incoming call I get, when I answer it I immediately get call failed on my iphone.

Has been like this since yesterday. Neither can I use Whatsapp for incoming or outgoing calls.

I can text successfully.

I'm going on holiday on Saturday morning and I need to be able to contact my son whilst I am away.

 

I am 4G and voLTE enabled.

 

Can you please advise?

 

Thank you,

 

Chris

 

 

 

 

 

 

 

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2 REPLIES 2

Decembersangel
SMARTY Motivator
SMARTY Motivator

‎30-05-2025 23:07 PM

Hi @Christo_3322266 

Have you checked to see if your phone is supported for VoLTE on their network?
https://help.smarty.co.uk/en/articles/8985136-checking-if-your-device-is-4g-volte-compatible

Here is some info I have found with regards to this:-

 
If you can't make regular or WhatsApp phone calls,it could be due to several issues, including network problems, app glitches, or device settings.Here's a breakdown of potential causes and solutions:
1. Network Connectivity:
  • Check your signal: Ensure you have a strong and stable cellular signal or a reliable Wi-Fi connection.
  • Restart your modem/router: A simple restart can sometimes resolve network issues.
  • Check for outages: If you're in a specific area, your mobile network provider might be experiencing temporary outages. 
     
2. WhatsApp Issues:
  • Update WhatsApp: Make sure you're using the latest version of the app. 
     
  • Restart your phone: This can help clear temporary glitches. 
     
  • Force quit and reopen WhatsApp: This can sometimes resolve app-specific problems. 
     
  • Check WhatsApp permissions: Ensure WhatsApp has the necessary permissions for microphone, camera, and audio access. 
     
  • Check your phone's settings: Ensure that WhatsApp isn't blocked by your phone's firewall or security settings. 
     
  • Check your microphone, camera, and speakers: If you're on a computer, make sure these devices are working correctly. 
     
  • Contact WhatsApp support: If the problem persists, reach out to WhatsApp Help Center for further assistance. 
     
3. Device Issues:
  • Check for software updates: Ensure your phone's operating system is up to date. 
     
  • Restart your phone: A simple restart can resolve temporary glitches. 
     
  • Check for device settings: Verify that Airplane mode is not enabled and that your phone isn't blocking calls from unknown or private numbers. 
     
  • Check your SIM card: Ensure your SIM card is properly inserted and not damaged. 
     
  • Reset network settings: This can help resolve issues related to network configuration. 
     
4. Other Potential Issues:
  • Conflicting apps: Make sure another app isn't using your microphone, camera, or audio. 
     
  • Battery saver mode: Turn off battery saver mode, as it might be restricting certain functions. 
     
  • Check your account: Ensure you have an active account with your mobile service provider and that your bill is paid up. 
     
  • Contact your carrier: If you're still having trouble, contact your mobile service provider for further assistance. 


Good luck x x


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MSF
SMARTY Guru
SMARTY Guru

‎30-05-2025 08:30 AM

@Christo_3322266 Did you start by doing a Network Status check to look for any local problems?

Can you check the phone with another sim from a friend/family member?