phone functionality doesnt work

  • 6 October 2022
  • 3 replies


I have a Samsung Galaxy Note20 5G. It installed a software update yesterday, and now I cannot make or receive phone calls. If I try to call out, it disconnects immediately (makes the sound like a call ended), and incoming calls go straight to voicemail without ringing. Texting and data appear to be working OK. How can this be corrected?


Best answer by ds329a 7 October 2022, 04:09

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3 replies

Userlevel 2
Badge +4

Hi @Treefrog99 We are sorry to hear you are experiencing issues with your device. May you ensure your device APN settings matches as below:

  • Name: Internet
  • APN: Endo
  • MMSC:
  • MMS Proxy:
  • Multimedia Message Port: 80
  • MCC: 310
  • MNC: 150
  • APN type: default,mms,fota,hipri,supl
  • APN protocol: IPv4
  • APN roaming protocol: IPv4
  • Turn APN on/off: ON
Userlevel 3
Badge +5

Hey @Treefrog99, you also want to verify that your LTE setting is enabled on your device. To use our network, a High-Definition Voice-capable (HD Voice-capable) device that is compatible with Cricket’s HD Voice network is required. 


how do you change the APM settings to try and fix the "hang up" issue. my apm settingsvare differant than what was posted.