Help - Phone Connects to Internet but Can't Call - Amaysim

tunzafun001 on 09/08/2017 - 16:12
Last edited 09/08/2017 - 18:00 by 1 other user

Hi all,

I gave my parents a Sim from the recent Amaysim deal. They have put it in an unlocked Telstra Buzz 4GX.

It connects to the internet always (phone shows a 4G connection), but more often than not they can't make or receive any calls, nor SMS. Even in a variety of locations.

Any ideas?

I suspect a network issue, but the Amaysim network map suggests full 3G and 4G support. I'm pretty sure the Buzz supports all Optus Bands as well?

FYI - They are using it in Alice Springs.

Cheers all

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• 

  Irate Monk on 09/08/2017 - 17:56

  but more often than not

  So, calls had worked some times?

  phone shows a 4G connection

  Does it actually load any web content?

  • 

    tunzafun001 on 09/08/2017 - 20:44

    Call worked once while they were at the shops. Yep, data is all good. I think the phone doesn't support 900, only 2100. So calls will only work near a 2100 tower. Optus is data only on 4G, and the phone supports 700, so that makes sense I guess.

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  retiredfeline on 09/08/2017 - 18:05

  Sometimes this happens due to APN settings. One tip I read (which I can't find again) to reset the phone to the correct APN settings is:

  • Go to Settings > More > Mobile Networks > Access Point Settings
  • Deliberately choose a wrong carrier
  • Let the connection fail
  • Restart the phone
  • Go back to Settings > More > Mobile Networks > Access Point Settings
  • This time choose Amaysim
  • 

    tunzafun001 on 09/08/2017 - 20:47

    Cheers, but the data part works fine. I think it's a network support issue with the ZTE buzz 4Gx (no 900 support, only 2100 I think). Compounded with Optus switching off 2G last week or so.

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  Randxyz123 on 09/08/2017 - 20:51

  +1

  Sounds like it's a data only sim or as others have said it can only get 4G data…

  Maybe buy them a new phone

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  Irate Monk on 09/08/2017 - 20:57

  Yes; sounds like a band support issue with the ZTE.

  Why don't you test the SIM with another phone and see if that is the case?