CAS Parameters

The Common Channel Associated (CAS) parameters are described in the table below.

CAS is applicable only to ISDN PRI interfaces.

CAS Parameters

Parameter

Description

'CAS Transport Type'

cas-transport-type

[CASTransportType]

Determines the ABCD signaling transport type over IP.

■ [0] CAS Events Only = (Default) Disable CAS relay.
■ [1] CAS RFC2833 Relay = Enable CAS relay mode using RFC 2833.

The CAS relay mode can be used with the TDM tunneling feature to enable tunneling over IP for both voice and CAS signaling bearers.

[CASAddressingDelimiters]

Enables the addition of delimiters to the received address or received ANI digits string.

■ [0] = (default) Disable. The address and ANI strings remain without delimiters.
■ [1] = Enable. Delimiters such as '*', '#', and 'ST' are added to the received address or received ANI digits string.

configure voip > interface e1-t1 > cas-delimiters-types

[CASDelimitersPaddingUsage]

Defines the digits string delimiter padding usage per trunk.

■ [0] = (Default) Default address string padding: '*XXX#' (where XXX is the digit string that begins with '*' and ends with '#', when using padding).
■ [1] = Special use of asterisks delimiters: '*XXX*YYY*' (where XXX is the address, YYY is the source phone number, and '*' is the only delimiter padding).

Note: For the parameter to take effect, a device restart is required.

[CASFileName_x]

Defines the CAS file name (e.g., 'E_M_WinkTable.dat') that defines the CAS protocol, where x denotes the CAS file ID (0-7). It is possible to define up to eight different CAS files by repeating the parameter. Each CAS file can be associated with one or more of the device's trunks, using the parameter CASTableIndex_x.

Note: For the parameter to take effect, a device restart is required.

[CASTablesNum]

Defines the number of loaded CAS protocol configurations files.
The valid range is 1 to 8.

Note: For the parameter to take effect, a device restart is required.

CAS State Machines Parameters

Note: To configure the CAS State Machine table using the Web interface, see Configuring CAS State Machines. The CAS state machine can be configured only through the Web-based management tool.

'Generate Digit On Time'

[CASStateMachineGenerateDigitOnTime]

Generates digit on-time (in msec).

The value must be a positive value. The default is -1.

'Generate Inter Digit Time'

[CASStateMachineGenerateInterDigitTime]

Generates digit off-time (in msec).

The value must be a positive value. The default is -1.

'DTMF Max Detection Time'

[CASStateMachineDTMFMaxOnDetectionTime]

Detects digit maximum on time (according to DSP detection information event) in msec units.

The value must be a positive value. The default is -1.

'DTMF Min Detection Time'

[CASStateMachineDTMFMinOnDetectionTime]

Detects digit minimum on time (according to DSP detection information event) in msec units. The digit time length must be longer than this value to receive a detection. Any number may be used, but the value must be less than CasStateMachineDTMFMaxOnDetectionTime.

The value must be a positive value. The default is -1.

'MAX Incoming Address Digits'

[CASStateMachineMaxNumOfIncomingAddressDigits]

Defines the limitation for the maximum address digits that need to be collected. After reaching this number of digits, the collection of address digits is stopped.

The value must be an integer. The default is -1.

'MAX Incoming ANI Digits'

[CASStateMachineMaxNumOfIncomingANIDigits]

Defines the limitation for the maximum ANI digits that need to be collected. After reaching this number of digits, the collection of ANI digits is stopped.

The value must be an integer. The default is -1.

'Collect ANI'

[CASStateMachineCollectANI]

In some cases, when the state machine handles the ANI collection (not related to MFCR2), you can enable the state machine to collect ANI or discard ANI.

■ [0] No = Don't collect ANI.
■ [1] Yes = Collect ANI.
■ [-1] Default = Default value.

'Digit Signaling System'

[CASStateMachineDigitSignalingSystem]

Defines which Signaling System to use in both directions (detection\generation).

■ [0] DTMF = DTMF signaling.
■ [1] MF = (Default) MF signaling.
■ [-1] Default = Default value.