Forum Discussion

Christo_3322266's avatar
Christo_3322266
SMARTY Pioneer
29-05-2025

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

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

 

 

 

 

 

 

 

Call Issues
Network

2 Replies

  • MSF's avatar
    MSF
    SMARTY Guru
    30-05-2025

    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?

  • Decembersangel's avatar
    Decembersangel
    SMARTY Motivator
    30-05-2025

    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