Values:
                                3              Unsuccessful call attempt
                                4              Stable call abnormal termination
                                5              CAMEL initiated call release
                                20           Management intervention

Note that the following GSM values are not valid for use in TAP:
                                0              normal release
                                2              partial record call reestablishment
Values 4, 5 and 20 are valid within a GPRS Call context only where the call did not terminate normally.  Where partial GPRS Calls are generated then only the last partial can contain a cause for termination where appropriate.
Values 3, 4 and 5 are valid within a MOC/MTC only where the call did not terminate normally.
Values 4 and 20 are valid within a WLAN context only where the call did not terminate normally.  Where partial GPRS Calls for WLAN network usage are generated then only the last partial can contain a cause for termination where appropriate.

 

Following is a mapping between the RFC2866 Acct-Termination-Cause values and Cause for Termination values:

 

  TD.57 Cause
  For Termination
  Values                     RFC2866 Values            RFC2866 Short Description

  <not present>        1                                          User Request

  4                                2                                          Lost Carrier

  4                                3                                          Lost Service

  4                                4                                          Idle Timeout

  4                                5                                          Session Timeout

  20                             6                                          Admin Reset

  20                             7                                          Admin Reboot

  4                                8                                          Port Error

  4                                9                                          NAS Error

  4                                10                                       NAS Request

  4                                11                                       NAS Reboot

  4                                12                                       Port Unneeded

  4                                13                                       Port Preempted

  4                                14                                       Port Suspended

  4                                15                                       Service Unavailable

  4                                16                                       Callback

  4                                17                                       User Error

  <not present>        18                                       Host Request