Huawei B890 4G LTE Smart Hub - Can't place or receive calls

I have no dial tone

There could be a number of reasons why you don't have dial tone. To resolve the issue, try the following.

  • Ensure your phone cable is plugged into the gray jack on the back of your Smart Hub.
  • Try another phone and another cable.

Check your SIM card

  1. Disconnect the power cable.
  2. Remove your SIM card
  3. Inspect the contacts of your SIM card for signs of damage such as rust or deep scratches. NOTE: If your SIM card shows signs of damage, visit a Product Care Centre.
  4. Reinsert your SIM card, taking care to insert it properly
  5. Reconnect the power cable.

Check coverage maps

Check our network maps to be sure that you’re in an area with coverage.

  • Check our coverage maps at Coverage & travelling.

Check signal strength

  1. Launch your Internet browser on your computer.
  2. Type http://huawei.smarthub in the address bar.
  3. Log in using the Admin account. Typically, the password is admin unless you have changed it.
  4. Click Settings in the top menu.
  5. Select System in the left column.
  6. Select Diagnosis.
  7. The line RSSI/RSRP is the signal strength measured in decibel.
    Ex: -50 is a very good signal and -110 is a weak signal.
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