You are here: CSP Developer’s Guide: Internet Protocol > 7 Interworking > Configuring Interworking

Configuring Interworking

Overview

Follow the steps below to configure two CSPs for interworking. These steps assume knowledge of SS7 and IP configuration.

The following term is used below.

Universal Flavor - Indicates that the Universal Protocol is not using any user defined TLVs to communicate any network-side protocol information which is not represented in the Universal Protocol specifications.

CSP 1

1. Assign the Logical Node ID.

2. De-assign spans.

3. Send the Product License Download message for the appropriate license (for example SIP).

4. Assign the IP Network Interface card’s spans and channels.

5. Configure interworking for all the designated SS7 CICs by setting the L4 Host Interworking configuration byte 0x0A as follows:

00 17 00 D7 00 00 FF 01 02 0D 03 00 01 00 0D 03 00 05 17 00 61 01 01 0A 01

Where:

00 61 = L4 Channel Management

01 = Entity

01 = Number of configuration bytes

0A = L4 Host Interworking

01 = Enable

See CH - Channel Management (0x61) in the API Developer’s Guide: Overview for more detail.

6. Configure Layer 4 interworking conversion from SS7 to Universal format by setting configuration bytes for Host/Network Protocol ID and flavor in the L4 Interworking component 0x84.

00 1D 00 D7 00 00 FF 01 02 0D 03 00 01 00 0D 03 00 05 17 00 84 01 04 03 01 04 02 14 05 15 01

Where:

00 84 = L4 Interworking Component

01 = Entity

04 = Number of Configuration Bytes

03 = Local Network Protocol ID

01 = SS7

04 = Local Network Protocol Flavor

02 = ISUP ITU

14 = Host Protocol ID (host interface to mimic for host interworking)

05 = Universal Protocol

15 = Host Protocol Flavor (host interface to mimic for host interworking)

01 = Universal Flavor (indicates that the Universal Protocol is not using any user defined TLVs to communicate any network side protocol information which is not represented in the Universal Protocol specifications.)

See PPL Component for Interworking (0x84) in the API Developer’s Guide: Overview for more detail.

7. Configure the SS7 stack, link set, links, routes, and CICs.

8. Send the route tables.

9. Bring spans, SS7 links, and channels in service.

10. Using the VoIP Protocol Configure 0x00EE configure the appropriate TLVs to enable SIP, UPDF tunneling, and remote host (set as CSP 2).

CSP 2

1. Assign Logical Node ID.

2. Deassign spans.

3. Send the Product License Download message for the appropriate license (for example SIP).

4. Configure interworking for all the designated SS7 CICs by setting the L4 Host Interworking configuration byte 0x0A as follows:
00 17 00 D7 00 00 FF 01 02 0D 03 00 01 00 0D 03 00 05 17 00 61 01 01 0A 01

5. Configure Layer 4 interworking conversion from SS7 to Universal format by setting the configuration bytes for Host/Network Protocol ID and flavor in the L4 Interworking component 0x84.
00 1D 00 D7 00 00 FF 01 02 0D 03 00 01 00 0D 03 00 05 17 00 84 01 04 03 01 04 02 14 05 15 01

6. Configure the SS7 stack, link set, links, route, and CICs.

7. Send route tables.

8. Bring spans, SS7 links, and channels in service.

9. Using the VoIP Protocol Configure (0x00EE) message configure the appropriate TLVs to enable SIP, UPDF tunneling, and remote host.

See Signaling System Number Seven.
Internet Protocol. Part of the TCP/IP family of protocols used to route messages and tracks the addresses of nodes.
Session-Initiation Protocol. A signaling protocol used for establishing sessions in an IP network. A session could be a simple, two-way telephone call, or it could be a collaborative multi-media conference session.
A computer, attached to the Excel platform through an RS-232 or Ethernet link, from which you run the telecommunications application that controls the Excel platform.
Interworking is a software feature within the Excel platform call control layer that enables protocol conversion by analyzing and converting Network Signaling (NS) Layer 3 information.
Call processing layer of the CSP.
See Integrated Services Digital Network User Part.
International Telecommunications Union (UN)
See Programmable Protocol Language.
Voice over Internet Protocol. The delivery of voice information in digital form in discrete packets rather than in the traditional circuit-committed protocols of the public-switched telephone network (PSTN).
See Universal Protocol Data Format.