> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/telecom-references/parameter-reference/sccp.md).

# SCCP parameters

SCCP addressing, global title translation and subsystems. 56 parameters.

## A

| Parameter        | Description                                                                        |
| ---------------- | ---------------------------------------------------------------------------------- |
| **ASMB Timer**   | Default extended unit data reassembly timer (ITU92, ITU96, ANSI96, and TELCORDIA). |
| **Attack Timer** | Default attack timer (ITU96).                                                      |

## B

| Parameter             | Description                                                                                                                          |
| --------------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
| **Broadband Support** | Select to indicate that peer SCCP on the route has broadband support (should unselect for ITU88, ITU92, ANSI88, ANSI92 and ANSI 96). |

## C

| Parameter                    | Description                                           |
| ---------------------------- | ----------------------------------------------------- |
| **Congestion Timer**         | Default SCCP congestion timer (ITU96).                |
| **CRD Timer**                | Default coordinated state change timer.               |
| **Customize msg importance** | Replace the default message importance configuration. |

## D

| Parameter                        | Description                                                                                                        |
| -------------------------------- | ------------------------------------------------------------------------------------------------------------------ |
| **Decay Timer**                  | Default decay timer (ITU96).                                                                                       |
| **Default Hop Count**            | Default Hop Count (between 1 and 15).                                                                              |
| **Default Status Enquiry Timer** | The interval at which the periodic status request is sent to MTP Level 3 to enquire of the status of a point code. |
| **Destination Point Code**       | The Destination Point Code (DPC) parameter is used to associate an object with a destination point code (DPC).     |

## E

| Parameter               | Description                                                 |
| ----------------------- | ----------------------------------------------------------- |
| **Enable Load Sharing** | Specifies whether to enable load sharing mode (ITU96 only). |
| **Encoding Scheme**     | Example Even Encoding Scheme                                |

## F

| Parameter             | Description                                                                                                 |
| --------------------- | ----------------------------------------------------------------------------------------------------------- |
| **Format Type**       | The Format Type parameter (GTI) is used to set a global title format to be used by an SCCP GTT association. |
| **Format Type (GTI)** | \*NOT\_USED: Indicates that global title is not used.                                                       |

## G

| Parameter                   | Description                                                          |
| --------------------------- | -------------------------------------------------------------------- |
| **GT Address (GTA)**        | Global Title Address (GTA) digits                                    |
| **GT Address (GTA) digits** | Specifies whether to preserve GT or replace with Entity Global Title |

## I

| Parameter            | Description               |
| -------------------- | ------------------------- |
| **Ignore SST Timer** | Default ignore SST timer. |

## M

| Parameter                                  | Description                                                                                                   |
| ------------------------------------------ | ------------------------------------------------------------------------------------------------------------- |
| **Max Msg Length**                         | Maximum length of message delivered to the SCCP from this LSAP.                                               |
| **Msg importance for priority 3**          | Mapping of SIO priority 3 to importance of message.                                                           |
| **Msg Importance: Ext Unit Data**          | Default importance for XUDT (Extended Unitdata) message.                                                      |
| **Msg Importance: Ext Unit Data Service**  | Default importance for XUDTS (Extended Unitdata Service) message.                                             |
| **Msg Importance: Long Unit Data**         | Default importance for LUDT (Long Unitdata) message.                                                          |
| **Msg Importance: Long Unit Data Service** | Default importance for LUDTS (Long Unitdata Service) message.                                                 |
| **Msg Importance: Unit Data**              | Default importance for UDT (Unitdata) message.                                                                |
| **Msg Importance: Unit Data Service**      | Default importance for UDTS (Unitdata Service) message.                                                       |
| **MTP3 Network**                           | The MTP3 Network parameter is used to associate an MTP3 network with a higher level network in an SS7 system. |

## N

| Parameter                  | Description                                                                   |
| -------------------------- | ----------------------------------------------------------------------------- |
| **Net Indicator Bit Type** | Net indicator bit is the MSB bit of CdParty's Global Title Address Indicator. |
| **Numbering Plan**         | Example ISDN Numbering Plan                                                   |

## O

| Parameter          | Description                         |
| ------------------ | ----------------------------------- |
| **Output Network** | Outgoing network of SCCP addresses. |

## P

| Parameter                           | Description                                                                                                                                              |
| ----------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Place PointCode in SCCP Header?** | Select to set CdParty's Global Title Address Indicator PC equal to final MTP3 Destination Point Code Unselected leaves the DPC in SCCP header untouched. |
| **Preserve Global Title**           | Specifies whether to preserve GT or replace with Entity Global Title                                                                                     |
| **Primary Hardware Adapter**        | The Primary Hardware Adapter parameter is used to identify a main Tmedia hardware device to run an ISUP stack.                                           |

## R

| Parameter                  | Description                                                                                                                                                          |
| -------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Replication Mode**       | The Replication Mode parameter is used to define the algorithm that will be used to select a point code/subsystem from the list of available point codes/subsystems. |
| **Routing Indicator (RI)** | Set RI bit in CdParty Global Title Address Indicator.                                                                                                                |
| **Routing Type**           | \*Global\_Title: Routing should be based on the global title.                                                                                                        |

## S

| Parameter                                     | Description                                                                                                                                                                                                                                           |
| --------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **SCCP Action Type**                          | The Action Type parameter is used to set a behavior for an SCCP GTT Address Map.                                                                                                                                                                      |
| **SCCP Address**                              | The SCCP Address parameter is used to set global title network addresses in an SCCP GTT address map.                                                                                                                                                  |
| **SCCP Backup Point Code**                    | The Backup Point Code is an alternate SP (Signaling Point) where to send the SCCP Messsage.                                                                                                                                                           |
| **SCCP Concerned Point Code**                 | A "Concerned" Point Code is SP that requires immediate notification if the affected subsystem or SP status changes.                                                                                                                                   |
| **SCCP Digit Range**                          |                                                                                                                                                                                                                                                       |
| **SCCP GTT association actions: Start Digit** |                                                                                                                                                                                                                                                       |
| **SCCP Net Indicator Bit**                    | SCCP Network Indicator Bit The SCCP Network Indicator is one bit wide.                                                                                                                                                                                |
| **SCCP Network**                              | The SCCP Network Parameter is used to associate an SCCP Network with an object in an SS7 system.                                                                                                                                                      |
| **SCCP Output Network**                       | The SCCP Output Network parameter is used to select an SCCP output network for a GTT address map on a system using the ITU96 protocol variant.                                                                                                        |
| **Secondary Hardware Adapter**                | The Secondary Hardware Adapter parameter is used to identify a secondary (backup) Tmedia hardware device to run an ISUP stack.                                                                                                                        |
| **Set Destination Point Code?**               | Select to set MTP3 Destination Point Code for this message.                                                                                                                                                                                           |
| **Set Sub-Service Type?**                     | Select to set the MTP3 SubServiceField (SIO NI).                                                                                                                                                                                                      |
| **Set Sub-System Number?**                    | Select to set CdParty's SSN Unselect to leave SSN untouched                                                                                                                                                                                           |
| **SRT Timer**                                 | Default subsystem routing test timer.                                                                                                                                                                                                                 |
| **SST Timer**                                 | Default subsystem status test timer.                                                                                                                                                                                                                  |
| **Start and End Digits**                      | The Start and End Digit parameters are only useful in an SCCP GTT Address Map with an action type in one of the following configurations: \* FIX \* VARIABLE\_ASCENDING \* VARIABLE\_DESCENDING These parameters are used to define the first and las |
| **Sub-System Number (SSN)**                   | SSN value to match.                                                                                                                                                                                                                                   |

## T

| Parameter                            | Description                                                                                                         |
| ------------------------------------ | ------------------------------------------------------------------------------------------------------------------- |
| **TCAP/MAP Operation Code (opcode)** | TCAP/MAP operation code (opcode) value to match.                                                                    |
| **Translation Type**                 | The translation type (TT) parameter is used in a network to indicate the preferred method of global title analysis. |

## U

| Parameter                                     | Description                                          |
| --------------------------------------------- | ---------------------------------------------------- |
| **Use Second Entity**                         | Select to use the second entity (ITU96 only).        |
| **Use SIO priorities msg importance mapping** | Select to enable SIO priority to importance mapping. |


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