The message "call failed" means that your phone was unable to complete the call due to technical or network issues. It typically indicates a problem on the caller's end rather than the recipient's, and does not necessarily mean the call was rejected or that you were blocked by the recipient

. Common reasons for a "call failed" message include:

• Poor or weak network signal, such as being in a remote area or inside buildings with poor coverage

• Airplane mode being enabled, which disables all wireless connections including calls

• Damaged or improperly inserted SIM card affecting network connectivity

• The recipient's phone being on Do Not Disturb mode or not accepting calls

• The recipient having blocked your number can also cause calls to fail, though this is less common and usually results in calls going to voicemail or disconnecting differently

• Network or carrier issues, including call routing problems or network congestion

• Software glitches or outdated phone software may also cause call failures

"Call failed" differs from "call ended," which usually means the call was connected but then hung up by either party. It also differs from a rejected call, which is typically indicated by a different message or behavior

. To fix call failed issues, common steps include:

• Checking and improving your network signal by moving to a location with better coverage.
• Turning off Airplane mode.
• Restarting your phone.
• Checking the SIM card for damage or proper insertion.
• Ensuring the number dialed is correct and valid.
• Updating your phone software and carrier settings

In summary, "call failed" means the call could not be completed due to connectivity or technical problems, mostly on the caller's side, rather than the call being rejected or blocked by the recipient