If your SIM is not making outbound CSD calls and/or receiving inbound CSD calls, you can try the following:
- Click into the SIM details in SIMPro to check CSD calls are enabled.
- Refresh the SIM and reboot or power cycle the device.
- Check the local network coverage and mast status. Many networks provide an online coverage checker. They can be found by Googling “[XXX] network coverage checker”. Please see our guide here or check the network coverage in SIMPro (Help > Coverage Checkers).
- Check if you can send or receive CSD calls to/from other devices.
- Check you are using the correct country code. Some of our common prefixes are:
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+44 - UK
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+31 - Netherlands
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+45 - Denmark
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+33 - France
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+34 - Spain
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+49 - Germany
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+1 - North America (US & Canada)
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- If using the SIM internationally, ensure international roaming is enabled on the device. Please see your device manual or consult your device manufacturer on how to do this.
- Other useful things to do include:
- Try the SIM in an alternative device
- Try an alternative SIM in the same device
- Try the device in a different location
- Manually roam the device onto the network or onto a different network (if possible)
- Attach an antenna to the device.
If you are still experiencing CSD call issues after completing some or all of these steps, please contact our team: support@wirelesslogic.com.