Network problems

Try using the included sim removal tool to eject your sim card, then push it back in to ensure proper connection.

If that doesn’t help, then try to click Settings, Cellular, then toggle the on/off switch for; "Turn On This Line".

aejaj256 Said:

"Network problems My phone has sim card problem which sometimes does not make calls and the network display pay point 1 comes and sometimes there is no sound at the time of call Plz solve to my problems"

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Whom to Contact:

Contact your Carrier, as they are the one who provide you with the service of Cellular.

Troubleshooting Phonecall Volume:

• Volume Output: If you Can't Hear a Person on a Call or Voicemail or if the Sound isn't Clear on your iPhone - Apple Support
• Volume Input: if your Microphone isn’t Working or People Can’t Hear you While you’re on a Call -Apple Support
• If Neither is of Success: Contact Apple Support