derivedDataType ChargingSipMethodEcscfDT

EcimDerivedString with length constraint (0..128) and pattern restriction. Allowed values are INVITE or empty string.

References from:
EcscfChargingSipMethodTriggerClass;
stringChargingSipMethodEcscfDT [ 0..128 ]

Valid values: (^$|INVITE)
  derivedDataType ChargingSipMethodEcscfDT