SS7 - Destination - ISUP Group - ANSI

The ISUP Group object is created under the SS7 Destination object. The ISUP Group object defines the attributes for a set of ISUP parameters. These attributes will be linked to one or more groups of ISUP channels/CICs. To create the ISUP Group, right click on the SS7 Destination object and select New ISUP Group. The contents of the object will vary depending on whether the associated SS7 Stack is ANSI or ITU. For a list of additional advanced ISUP group parameters, right click on the ISUP Group and a drop down menu displaying the additional ISUP parameters will appear. Once all the ISUP parameters are configured, the ISUP group will need to be linked to one or more groups of CICs. Right click on the ISUP Group and select New SS7 Circuit Group. The CIC group created will now be linked to the Group of CICs.

For information regarding the ISUP Group with an ITU stack selected in the OPC-DPC field, refer to the IMG 1010 - ISUP Group - ITU / ETSI.

Web GUI Page

Dialogic > SS7 > SS7 Network > SS7 Stack > SS7 Destination > New SS7 Group

Open

Maximum Objects

512 ISUP Groups per IMG 2020 node.

Related Topics and Dependencies

The ISUP Group is created under the SS7 Destination object. The ISUP Group contains a set of ISUP parameters that will be utilized during the call setup process. Within the ISUP Group are a list of basic parameters to be configured. Also, a list of additional parameters are available by right clicking on the ISUP Group object and selecting one of the additional parameters from the drop down list. The additional parameters created will also become part of the ISUP Group. Once the ISUP Group object is configured, individual SS7 Circuit Group objects (CICs) can be created under the ISUP Group. The SS7 Circuit Group is created to configure spans/channels into a group of CICs. Each group of CICs created will have a starting CIC number and a node that the CICs will reside on configured onto them. Once one SS7 Circuit Group (CICs) is configured, more Circuit Group objects can be created under the Channel Group. Refer to the Configure SS7 topic which describes the SS7 configuration process.

M3UA SS7 Destination

SS7 - Destination - Route

SS7 - Destination - ISUP Group - ITU 

Field Descriptions

ISUP Profile

Within the ISUP Profile field is a drop down menu that displays all the individual ANSI or ITU ISUP Profiles currently available. Click in the ISUP Profile field and select the ISUP profile that will be linked to the ISUP Group being configured. Refer to SS7 - ISUP Profile - ANSI or SS7 - ISUP Profile - ITU topic for more information on the ISUP Profile object.

Glare Rule

Indicates how simultaneous incoming and outgoing seizures of the same SS7 channel are resolved.

Drop Outgoing Call - The incoming seizure is denied.

Drop Incoming Call - The outgoing seizure is denied

Odd/Even - The incoming seizure is denied if:

The Originating Point Code (OPC) value is less than the Destination Point Code (DPC) value, and the CIC number is odd

-- or --

The Originating Point Code (OPC) value is greater than the Destination Point Code (DPC) value and the CIC number is even (ITU-T Recommendation Q.767).

Incoming Continuity Check

If the IMG 2020 receives an IAM with Continuity Check required, the selections below decide how this will be handled.

Wait for COT (default) - Wait for the Continuity Message (COT) before sending the INVITE or Setup message (Outgoing IP channel groups).

Do not wait for COT - Propagate the IAM with Continuity check required on previous circuit (Outgoing SS7 channel groups).

Out Continuity Check

The Out Continuity Check field indicates how frequently outgoing calls on the SS7 channel undergo an automatic continuity check.

Satellite Circuit

The Satellite Circuit field indicates if this SS7 channel makes use of a satellite facility.

CIC Service Rule

Indicates which SS7 message is sent when an SS7 stack on the IMG 2020 takes an SS7 channel out-of-service.

Block - The SS7 stack sends an SS7 Blocking (BLO) message. The SS7 stack will then send an SS7 Unblocking (UBL) message when the IMG 2020 puts the SS7 channel back in service.

No Bloc - The SS7 stack does not send an SS7 message. The SS7 stack will then send an SS7 Reset Circuit (RSC) message when the IMG 2020 puts the SS7 channel back in service.

No Action - The SS7 stack does not send any messages when SS7 channel is taken Out Of Service.

Hop Counter

Indicates the number of switches that can process a call before the call is dropped.

Off (Default) - Feature is Disabled. Switch will not drop call.

01-31 - Select from drop down list the number of switches that can process the call before call is dropped.

State Transitions

Group Operations (Default)

Individual Operations (B/U)

Individual Operations (R/B/U)

Discard Privacy INFO

Discard Privacy info omits Calling Line Identification (CLI) parameters in the ISUP message. Choices shown below:

Refer to the IMG 1010 - Configuring SIP Privacy topic for more information.

USI Screening Cause Value

LNP Routing Enable

Enables or disables Local Number Portability routing.

Refer to the Local Number Portability (LNP) topic for more information.

Link OOS Handling

Disable (Default) - If Signaling Link goes Out Of Service, then the associated CICs will go Out Of Service as well.

Enable - If signaling link goes Out Of Service all associated CIC's which are in the idle state will go Out Of Service. If any CICs are in either the ringing or connected state the CIC's will not go Out Of Service until a later subsequent condition occurs. Refer to the IMG 1010 - SS7 Link OOS Handling topic for more information on configuration and functionality.

Transparent ISUP via SIP-T

The field Transparent ISUP via SIP-T is utilized when messaging is being received via SIP-T on incoming channel group and is being sent out of IMG via an SS7 ISUP Channel group. Before configuring verify that SIP-T is enabled and configured. See SIP Signaling and  SIP-T entity for more information on configuring/enabling SIP-T:

Once the SIP-T is configured then the Transparent ISUP via SIP-T field can be configured.

Disabled (Default) - When field is set to Disabled (Default) the IMG will function normally. Messages received via SIP-T will be processed through the IMG and any parameters that are added or modified through the IMG configuration will be modified and sent out the SS7 ISUP channel group in an outgoing IAM message.

Enabled - When field is set to Enabled any messages being received via SIP-T will be sent to the outgoing ISUP channel group unchanged regardless of the configuration set on the IMG. Any modifications or parameter overrides due to the configuration set on the IMG will be ignored.