An asterisk * in the title indicates the field is mandatory.
If a field has a default value, it is shown in the Description column.
If the field type is an array, the Field Name has a .[n] suffix, where n is the array index placeholder.
Object and array field names are listed to provide context. If a field belongs to an object or an array, the full field name is shown in dot separated notation.

Title	Description	Details
Enable Fallback For Ime Calls		Field Name: enableFallbackForImeCalls Type: ["Boolean", "Null"] Cardinality: [0..1]
Dtmf Correlation Digits		Field Name: dtmfCorrelationDigits Type: ["Integer", "Null"] Cardinality: [0..1]
Qos Sensistivity Level	Valid Values are from 0 to 5	Field Name: qosSensistivityLevel Type: ["Integer", "Null"] Cardinality: [0..1]
Call Css	Valid Values are 0 and 1	Field Name: callCss Type: ["Integer", "Null"] Cardinality: [0..1]
Fallback Split Delay Timer		Field Name: fallbackSplitDelayTimer Type: ["Integer", "Null"] Cardinality: [0..1]
Clear Ime Call Delay Timer		Field Name: clearImeCallDelayTimer Type: ["Integer", "Null"] Cardinality: [0..1]
Call Answer Timer		Field Name: callAnswerTimer Type: ["Integer", "Null"] Cardinality: [0..1]
Post Connect Fallback Delay Timer		Field Name: postConnectFallbackDelayTimer Type: ["Integer", "Null"] Cardinality: [0..1]
Dtmf Inter Digit Delay Timer		Field Name: dtmfInterDigitDelayTimer Type: ["Integer", "Null"] Cardinality: [0..1]
Dtmf Collection Timer		Field Name: dtmfCollectionTimer Type: ["Integer", "Null"] Cardinality: [0..1]

Model: device/cucm/FallbackFeatureConfig