1. Virtual Signaling Transfer Point User Guide
  2. GUI Configurations
  3. Configuration
  4. SCCP GTT Mods

5.1.16 SCCP GTT Mods

A Global Title Translation (GTT) Modification is an entity assigned to a GTT set (/vstp/globaltitleaddresses) and GTT Actions (/vstp/gttactions).

Select the VSTP, and then Configuration, and then SCCP GTT Mods page. The page displays the elements on the SCCP GTT Mods View, Insert, and Edit pages.

Note:

The Calling Party GT Modification can be performed in the following ways:
  • Calling Party GT Modification using GTT on CgPA:
    Perform the following steps to enable Calling Party GT Modification using GTT on CgPA:
    1. Set Calling Party GT Modification Indicator to true for the incoming Linkset or the GTT Translation configurations on the Linkset or Global Title Address page respectively..

      This indicates that the Calling Party GT Modification needs to be performed.

    2. The Calling Party GT Modification data is extracted by performing GTT on the Calling Party GTA using the Cd GTT Mode / Hierarchy. If the GTT Selectors and GTT Translation for CgPA GTA is configured, then the GT Modification data attached with is used to perform Calling Party GT Modification on outgoing messages.
      1. Configure the GTT Translation for the incoming CgPA GTA in a CDPA GTT Set. Attach the required GTT Modification data to this translation.
      2. Create GTT Selector as per the parameters in the CgPA of incoming message. Attach the previously configured GTT Set to the “CDPA GTT Set” of this GTT Selector.
  • Calling Party GT Modification using “GTT Action - Forward”
    Perform the following configurations to enable Calling Party GT Modification using GTT Action - Forward:
    1. Go to GTT Actions and set GTT Action Type parameter value to Fwd.
    2. For the GTT action, set values of the Called Part GTT Mod Name and Calling Part GTT Mod Name parameters. Configure remaining parameters for Fwd GTT Action as per the routing requirement.
    3. Attach Fwd - GTT Action to a GTT Action Set. This could be a new GTT Action Set or an existing one.
    4. Attach the GTT Action Set to the GTT Translation where, the GT Modifications needs to be performed.

Table 5-16 SCCP GTT Mods Elements

Element Description Data Input Notes
CgPA Subsystem Number CgPA subsystem number. Maximum: 255 Minimum: 2
GT Filler Indicator GT filler indicator in case of GTI change
GTT Mod Name Unique name for SCCP GTT MOD.

This is a mandatory field.

Valid names are strings between one and 9 characters, inclusive. Valid characters are alphanumeric and underscore. The name must contain at least one alpha and must not start with a digit.
New Global Title Indicator Defines the new Global Title Indicator for this GTT Mod. Values:
  • When set to TtNumEncodingNature, then 4 value is assigned corresponding to the itu domain set.
  • When set to TtOnly, then 2 value is assigned corresponding to the domain that is set.
Multiple entries can exist for TtOnly corresponding to each domain.
New Nature of Address Indicator Defines new Nature of Address indicator for this GTT Mod. Maximum: 127 Minimum: 0
Values:
  • Value 1 refers to Subscriber natureOfAddressIndicator
  • value 2 refers to Reserved natureOfAddressIndicator
  • value 3 refers to National natureOfAddressIndicator
  • value 4 refers to International natureOfAddressIndicator
  • value 5-127 refer to spare values
  • value 0 refers to unknown natureOfAddressIndicator
New Numbering Plan Defines new Numbering plan (NP) for this GTT Mod. Maximum: 15 Minimum: 0
Values:
  • Value 1 refers to Isdn numberingPlanValue
  • value 2 refers to Generic numberingPlanValue
  • value 3 refers to Data numberingPlanValue
  • value 4 refers to Telex numberingPlanValue
  • value 5 refers to Maritime numberingPlanValue
  • value 6 refers to Land
  • value 7 refers to IsdnMobile numberingPlanValue
  • value 8 refers to Private numberingPlanValue
  • value 9-15 refers to Spare nnumberingPlanValue
  • value 0 refer to Unknown numberingPlanValue
New Translation Type Defines the new translation type (TT) for this GTT Mod. Maximum: 255 Minimum: 0
Number of Prefix Digits to be Deleted Number of prefix digits to be deleted. The number of digits to be deleted from the prefix of the received GT address. Maximum: 21 Minimum: 1
New Prefix Digits String New prefix digits string. The digits to be prefixed to the received GT address.
Number of Suffix Digits to be Deleted Number of suffix digits to be deleted. The number of digits to be deleted from the suffix of the received GT address. Maximum: 21 Minimum: 1
New Suffix Digits String New suffix digits string. The digits to be suffixed to the received GT address.
Suffix Prefix Processing Precedence Indicator Suffix Prefix processing Precedence indicator. Default: false

You can perform add, edit, or delete tasks on VSTP>Configuration>SCCP GTT Mods page.

Adding a SCCP GTT Mod

Perform the following steps to configure a new SCCP GTT Mod:

  1. Click Insert.

    Note:

    The new SCCP GTT Mod must have a name that is unique across all SCCP GTT Mods at the SOAM. In addition, the SCCP GTT Mod's IP Port combination must also be unique across all SCCP GTT Mods configured at the SOAM.
  2. Enter the applicable values.
  3. Click OK, Apply, or Cancel

Editing a SCCP GTT Mod

Use this procedure to change the field values for a selected SCCP GTT Mod. (The SCCP GTT Mod Name field cannot be changed.):
  1. Select the SCCP GTT Mod row to be edited.
  2. Click Edit
  3. Enter the updated values.
  4. Click OK, Apply, or Cancel

Deleting a SCCP GTT Mod

Use the following procedure to delete a SCCP GTT Mod.

Note:

If the GTT Modification is associated with a Global Title Address (/vstp/globaltitleaddresses), the GTT Modification cannot be deleted.
  1. Select the SCCP GTT Mod to be deleted.
  2. Click Delete.
  3. Click OK or Cancel.