IMG 1010 - ISUP Group - JTISUP

Description:

This pane defines the configuration for a group of ISUP channels. The contents of the pane will vary depending on whether the associated SS7 Stack configured in the OPC-DPC field is an ANSI, ITU, or JTISUP stack.

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

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

Accessing this Pane:

Dialogic IMG EMS -> Routing Configuration -> Channel Groups-> Channel Group (SS7) -> ISUP Group

Maximum Objects:

512 per SS7 Channel Group

Related Topics:

IMG 1010 - Configuring SS7 CIC Routing (section "Configuring an ISUP Group")

ClientView Panes:

ISUP Group Pane - JTISUP stack is selected in the OPC-DPC field.

Field Descriptions (ITU)

OPC - DPC:

This field has a drop-down list populated with OPC-DPC combinations from previously configured SS7 Stack (OPC) and SS7 Route (DPC) configuration.

Glare Rule:

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

Drop Outgoing Call - The outgoing seizure is denied.

Drop Incoming Call - The incoming seizure is denied.

Odd/Even - The incoming seizure is denied if:

• The OPC value is less than the DPC value and the CIC number is odd or,

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

Incoming Continuity Check:

Configures the behavior in case of receiving an IAM with Continuity Check required on this circuit.

Wait for COT (default) - Wait for the COT before sending the INVITE or Setup (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:

Indicates how frequently outgoing calls on this SS7 channel undergo an automatic continuity check.

Satellite Circuit:

This field indicates if this SS7 channel makes use of a satellite facility.

• No (Default)

• Yes 

CIC Service Rule:

Indicates what SS7 message , if any, the responsible SS7 stack sends when IMG takes this SS7 channel Out-Of-Service.

Block - The SS7 stack sends an SS7 Blocking (BLO) message. If stack is brought back into service it will send an SS7 Unblocking (UBL) message.

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

No Action - The SS7 stack does not send an SS7 message. Required setting when Exchange Type in SS7 Stack is configured as Type A.

Hop Counter:

This list indicates the number of switches that can process the call before the responsible switch rejects the call.

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

Individual Operations(B/U)

Individual Operations(R/B/U)

Echo Suppression:

Echo Suppressor Not Present

Echo Suppressor Present

Max # of CdPN Digits (IAM):

For outgoing SS7 calls, when the number of digits reaches this value the IMG sends an IAM and the remaining digits are sent in a SAM (Subsequent Address Message).

Alert/Answer:

Determines if the alerting/answering of the call will be setup using ACM/ ANM combination or using CON.

ANM/ACM or CON (default)

Parameter Compatibility Checking:

Information sent in either direction indicating how a node should react in case the parameter is unrecognized.

Determines if the IMG will check for  incompatible parameters in an ISUP message.

Off

On

Parameter Compatibility Pass On:

Determines the behavior of IMG when receiving an incompatible parameter in an ISUP message, whether to pass it to the far end or not.

Off (Do Not Pass)

On (Pass)

Overload Handling:

This configures how the IMG responds upon getting busy (low idle time). The IMG can indicate to the far end that it is overloaded either by releasing (REL) the call or by sending an OLM (Overload Message).

Send REL

Send OLM

UPT upon UPU:

This configures how the IMG responds upon receiving a UPU (User Part Unavailable) from the far end of the CIC. If enabled, the IMG will send a UPT (User Part Test) message continuously until any ISUP message is received from the far end of the CIC.

Yes (enable)

No (disable)

Transmission Medium:

Information sent in the forward direction indicating the type of transmission medium required for the connection. The Transmission Medium field determines the value of the transmission medium parameter in any IAM message referring to that CIC. The selections are displayed below.

• Speech

• 64 Kbit Unrestricted

• 3.1 KHz audio

Propagation Delay:

If enabled, when the IMG receives an IAM message with no Propagation delay specified, the propagated IAM message to the far end will contain the ‘Propagation Delay counter’ parameter with the value set in the Propagation Delay Time field (below).

If the IAM message coming to the IMG already contains a propagation delay value, the propagated IAM message to the far end will contain the ‘Propagation Delay counter’ parameter with the value set to the sum of the incoming Propagation Delay Time field (below).

• Off (disable)

• On (enable) 

Propagation Delay Time (MS):

See Propagation Delay field above.

History Passage:

Off

On

Discard Privacy Info:

The selected option will be removed from the ISUP message. See IMG 1010 - Configuring SIP Privacy

TMR Values Allowed:

TMR Screening Cause Value:

LNP Routing Enable:

Use this field to enable or disable Local Number Portability routing.

See IMG 1010 - Local Number Portability (LNP)

Link OOS Handling:

Disable (Default) - Functionality is same as previous software. If Signaling Link goes Out Of Service, then the associated CIC's 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 CIC's are in either the ringing or connected state the CIC's will not go Out Of Service until a later subsequent condition occurs. See IMG 1010 - SS7 Link OOS Handling for more information on configuration and functionality.

CUGS (Closed User Group) Handling:

The Closed User Group field was added in software 10.5.3_ER1 and adds to the IMG the ability to either pass or reject calls which have the CUG parameter (Interlock Codes) embedded in it. If CUG parameter is not in the incoming call then the call will be passed regardless of the selection in the CUGS Handling field. Click in CUGS Handling field and select from drop down menu.

Reject Calls (Default) - If IMG receives a call with the CUG parameters (Interlock Codes) then IMG will reject the call with a cause code of 29 'facility rejected. See which is call trace of rejected call with CUG parameter.

Ignore - If IMG receives a call with the CUG parameters (Interlock Codes) then the IMG will pass the call. See which is a call trace of a passed call with CUG parameter.

Allow based on OFCI (Optional Forward Call Indicators) - When the IMG receives a CUG parameter in the incoming IAM the IMG will handle the call based on the bits BA in the OFCI as follows:

CIC Mapping:

Select whether CIC's will be mapped according to JT ISUP specifications or ISUP specifications

JTISUP - CIC mapping will follow JTISUP specifications. Refer to IMG 1010 - JT ISUP CIC Mapping

ISUP - The start and end CIC will map to Span/Channel in a sequential manner not skipping any DS0's.