Cause No. 20 - subscriber absent

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This cause value is used when a mobile station has logged off. Radio contact is not obtained with a mobile station or if a personal telecommunication user is temporarily not addressable at any user-network interface.

[edit] What to do ?

  • Restart phone which suppose to receive that call.
  • Enabled Qualify if Device looses connection constantly.
  • If Provider returns this error - try to change Provider

[edit] See also

Personal tools


Try M2