Creating an ISUP User Part

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Applies to version(s): v2.8.

Once you have created your ISUP network, you must create a new ISUP user part.

The user part is the container for the multiple ISUP interfaces. One user part is required for each protocol variant. A user part can be seen as a protocol variant that a host application wants to use on the SS7 network.

Multiple ISUP user parts can be instantiated within a single ISUP protocol layer. This allows a user application to interface with multiple SS7 ISUP protocol variants at the same time. In addition, only one ISUP user part is required for a specific variant as it can be assigned to multiple ISUP networks.


To create an ISUP user part:

1- Click ISUP in the navigation panel.

CreateIsupStack 0.png


2- Select the ISUP stack

SelectIsupStack 0.png


3- Click Create New Isup Userpart in the ISUP stack configuration window:

Create ISUP Userpart 0.png


4- Configure the new ISUP user part:

  • Enter a name for the user part
  • Select a protocol variant (depending on location)
  • Select an MTP3 sub service field (the same that was previously set for MTP3)
  • Select an address indicator type
  • Select a Numbering Plan
  • Click Create

Create ISUP Userpart 1.png


5- Verify that the "IsupUserpart was successfully created" message appears

Create ISUP Userpart 2.png

List of Parameters



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