ISUP Group

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 is ANSI or ITU.

 

Accessing this Pane:

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

SC_Tree_ISUP_Group.png

 

Maximum Objects:

512 per SS7 Channel Group

 

Related Topics:

Configuring an ISUP Group

 

ClientView Panes:

ISUP Group Pane - ITU, CCITT and ETSI Versions (ANSI Version below.)

SC_ISUP_Grp_ITU_10-5-3.png

 

Field Descriptions:

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:

This field 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 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:

This field indicates how frequently outgoing calls on this SS7 channel undergo an automatic continuity check.

 

None (Default) - No Continuity Checks Performed

1:xx - One out of every X calls undergoes a Continuity Check

1:02 - One of every 2 calls undergoes a Continuity Check.

1:03 - One of every 3 calls undergoes a Continuity Check.

1:04 - One of every 4 calls undergoes a Continuity Check.

1:05 - One of every 5 calls undergoes a Continuity Check.

1:06 - One of every 6 calls undergoes a Continuity Check.

1:07 - One of every 7 calls undergoes a Continuity Check.

1:08 - One of every 8 calls undergoes a Continuity Check.

1:09 - One of every 9 calls undergoes a Continuity Check.

1:10 - One of every 10 calls undergoes a Continuity Check.

1:11 - One of every 11 calls undergoes a Continuity Check.

1:12 - One of every 12 calls undergoes a Continuity Check.

1:13 - One of every 13 calls undergoes a Continuity Check.

1:14 - One of every 14 calls undergoes a Continuity Check.

1:15 - One of every 15 calls undergoes a Continuity Check.

1:16 - One of every 16 calls undergoes a Continuity Check.

 

Satellite Circuit:

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

No (Default)

Yes

 

CIC Service Rule:

This list 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

 

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).

 

Signaling Variant

Range

ITU-97, ETSI-V3

1-24 or "OFF" for no limit

ITU-93, CCITT-88, ETSI-V2, ETSI-V1

1-16

 

 

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:

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:

Determines the value of the transmission medium parameter in any IAM message referring to that CIC.

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).

 

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 Configuring SIP Privacy.

 

Off (Default)

Display Only

Generic Number Only

Display & Generic Number

Calling Party Only

Display and Calling Number

Calling, Display and Generic

 

TMR Allowed:

Speech

64 kbits/s unrestricted

3.1 KHz audio

Alternate Speech

Alternate 64 kbit/s unrestricted

64 kbits/s preferred

2x64 Kbits/s unrestricted

384 Kbits/s unrestricted

 

 

TMR Screening Cause Value:

 

65 (BearerCap Not Implemented)

88 (Incompatible Destination)

 

 

LNP Routing Enable:

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

Disable (Default)

Enable

 

 

See Local Number Portability (LNP).

 

 

 

ISUP Group Pane - ANSI Version

SC_ISUP_Grp_ansi_10-5-3.png

 

Field Descriptions

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.

 

Local CLLI:

This field indicates the local CLLI (Common Language Location Identification) code for the group of SS7 channels to which this channel belongs.

 

Remote CLLI:

This field indicates the remote CLLI (Common Language Location Identification) code for the group of SS7 channels to which this channel belongs.

 

Glare Rule:

This field 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 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:

This field indicates how frequently outgoing calls on this SS7 channel undergo an automatic continuity check

 

None (Default) - No Continuity Checks Performed

1:xx - One out of every X calls undergoes a Continuity Check

1:02 - One of every 2 calls undergoes a Continuity Check.

1:03 - One of every 3 calls undergoes a Continuity Check.

1:04 - One of every 4 calls undergoes a Continuity Check.

1:05 - One of every 5 calls undergoes a Continuity Check.

1:06 - One of every 6 calls undergoes a Continuity Check.

1:07 - One of every 7 calls undergoes a Continuity Check.

1:08 - One of every 8 calls undergoes a Continuity Check.

1:09 - One of every 9 calls undergoes a Continuity Check.

1:10 - One of every 10 calls undergoes a Continuity Check.

1:11 - One of every 11 calls undergoes a Continuity Check.

1:12 - One of every 12 calls undergoes a Continuity Check.

1:13 - One of every 13 calls undergoes a Continuity Check.

1:14 - One of every 14 calls undergoes a Continuity Check.

1:15 - One of every 15 calls undergoes a Continuity Check.

1:16 - One of every 16 calls undergoes a Continuity Check.

 

 

Satellite Circuit:

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

No (Default)

Yes

 

CIC Service Rule:

This list indicates what SS7 message, if any, the responsible SS7 stack sends when IMG takes this SS7 channel is out-of-service.

 

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

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

 

Hop Counter:

This list indicates the number of switches that can have processed a 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 (Default)

Individual Operations (B/U)

Individual Operations (R/B/U)

 

Echo Suppression:

Echo Suppressor Not Present (Default) -

Echo Suppressor Present

 

Circuit Group Carrier Indicator:

This field indicates the nature of signaling on this SS7 channel’s physical medium. Your input, permitted only if this SS7 channel is associated with an SS7 stack whose ISUP is ANSI-compliant.

 

Alarm Carrier Indicator:

 

CVT Upon UPU:

This field indicates if the controlling SS7 stack will automatically send an SS7 Circuit Validation Test (CVT) message when it receives a User Part Unavailable (UPU) indication for a call’s destination (DPC).

 

GRS/GRA Behaviour:

Pre ANSI 1995 - default if SS7 Stack is configured for ANSI 93

Post ANSI 1995 - default if SS7 Stack is configured for ANSI 95 or 97

 

Sending GRS/GRA - The post 1995 GRA message, which would be sent in response to an incoming post 1995 GRS, will have the optional circuit assignment map parameter included if it was included in the incoming GRS.

The pre 1995 GRA message, which would be sent in response to an incoming pre 1995 GRS, will not have a pointer to optional circuit assignment map parameter.

Receiving GRS/GRA - The received GRS/GRA messages are validated against the pre 1995 or post 1995 format depending upon the configuration for the base CIC. A confusion (CFN) message will be sent if the incoming message does not have the expected format.

 

Originating Line INFO Checking:

Disable (Default) - The IMG will not validate that there is a Charge Number parameter included in the IAM with the Originating Line Info parameter

Enable - The IMG will validate that there is a Charge Number parameter included in the IAM with the Originating Line Info parameter as per ANSI standards.

 

 

Discard Privacy INFO:

Discard Privacy info omits CLI in the ISUP message. Choices shown below:

Off (Default)

Display Only

Generic Number Only

Display & Generic Number

Calling Party Only

Display and Calling Number

Calling, Display and Generic

 

USI Info Transfer Capability Allowed:

 

Speech

Unrestricted Digital Info

Restricted Digital Info

3.1 KHz Audio

Unrestricted Digital with tones/announcements

 

 

USI Transfer Rate Allowed:

64  Kbits/s

384 Kbits/s

 

USI Screening Cause Value:

65 (Bearer Not Implemented)

88 (Incompatible Destination)

 

LNP Routing Enable:

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

Disable (Default)

Enable

 

See Local Number Portability (LNP).