SS7 - Destination - ISUP Group - Parameter Filter

When the IMG 2020 receives messaging on the inbound side the SS7 Parameter Filter object can be configured to either Pass or Don't Pass some or all of the parameters received on to the egress or outbound leg. Any parameters that are configured as Don't Pass will be dropped and parameters configured to be Passed will be passed to the egress or outbound leg only. The SS7 Parameters are displayed in the table below. By Default, all parameters are configured to be passed to egress leg except the Transit Network Select and UUI parameters.

When SS7 Parameter Filter is used, the parameters set to "Do Not Pass" are removed just before sending out the ISUP message.

When SS7 Incoming Parameter Filter is used, the parameters set to "Do Not Pass" are removed at the reception of the ISUP message and are not interworked to outgoing calls.

Web GUI Page

Dialogic > SS7 > SS7 Network > SS7 Stack > SS7 Destination > ISUP Group > New SS7 Parameter Filter

Dialogic > SS7 > SS7 Network > SS7 Stack > SS7 Destination > ISUP Group > New SS7 Incoming Parameter Filter

Maximum Objects

1 Parameter Filter object per ISUP Group

Field Descriptions

For each field, the options are:

Pass - Pass the ISUP SS7 Parameter to the outbound side

Don't Pass - Do Not Pass the ISUP SS7 Parameter to the outbound side

Parameter	ID	Supported Variant
Access Transport	(00000011), 0x03	ANSI, ITU, ETSI
Calling Party Number	(00001010), 0x0a	ANSI, ITU, ETSI
Carrier Identification	(11000101), 0xc5	ANSI
Carrier Selection Info	(11101110), 0xee	ANSI
Charge Number	(11101011), 0xeb	ANSI
Generic Address / Generic Number	(11000000), 0xc0	ANSI, ITU, ETSI
Generic Name	(11000111), 0xc7	ANSI
Jurisdiction Info	(11000100), 0xc4	ANSI
Original Called Number	(00101000), 0x28	ANSI, ITU, ETSI
Out Trunk Group Number	(11100111), 0xe7	ANSI
Originating Line Info	(11101010), 0xea	ANSI
Redirecting Number	(00001100), 0x0b	ANSI, ITU, ETSI
Redirecting Info	(00010011), 0x13	ANSI, ITU, ETSI
Service Code Indicator	(11101100), 0xec	ANSI
Transit Network Select	(00100011), 0x23	ANSI, ITU, ETSI
User to User Information	(00100000), 0x20	ANSI, ITU, ETSI

Regardless of whether the parameter is supported in ANSI, ITU, or ETSI, if a parameter is selected to Not Pass and it is not supported on the variant being used it will not affect the call. If the parameter is not supported, the IMG 2020 will do nothing with it.

Parameter Descriptions

Access Transport: (Default - Pass)

Information generated on the access side of a call and transferred transparently in either direction between the originating and terminating local exchanges. The information is of significance to both users and local exchanges.

Calling Party Number: (Default - Pass)

Information sent in the forward direction to identify the calling party and consisting of the odd/even indictor, nature of address indicator, numbering plan indicator, address presentation restriction indicator, screening indicator, and address signals.

Carrier Identification: (Default - Pass)

Information sent in the forward direction to the transit network indicating the transit network selected by the originating subscriber.

Carrier Selection: (Default - Pass)

Sent in the forward direction to indicate whether the calling user selected the transit network by presubscription or dialed input and if pre-subscribed whether or not the carrier identification code was also dialed.

Charge Number: (Default - Pass)

Information sent in either direction indicating the chargeable number for the call and consisting of the odd/even indicator, nature of address indicator, numbering plan indicator, and address signals.

Generic Address: (Default - Pass)

Information in the form of an address pertaining to a supplementary service (e.g., dialed number, destination number and including type of address, nature of address and numbering plan indications.

Generic Name: (Default - Pass)

Information sent in the forward direction containing specific name-related information.

Jurisdiction Info: (Default - Pass)

Information sent in the forward direction indicating the geographic origination of the call.

Original Called Number: (Default - Pass)

Information sent in the forward direction to indicate, in the case of call redirection (e.g., call forwarding), the number of the user who initiated the initial redirection.

Out Trunk Group Number: (Default - Pass)

Information sent in the backward direction indicating the trunk group selected at an outgoing gateway. For intra network use only.

Originating Line Info: (Default - Pass)

Information sent in the forward direction, indicating a toll class of service for the call.

Redirecting Number: (Default - Pass)

Information sent in the forward direction indicating the number from which the call was last redirected and consisting of the nature of address indicator, numbering plan indicator, address presentation restriction indicator, and address information (signals).

Service Code Indicator: (Default - Pass)

Information sent in the forward direction indicating a service code provided by the calling party.

Transit Network Select: (Default - Don't Pass)

Information sent in the forward direction indicating the transit networks requested for the routing of the call and consisting of the type of network identification, network identification plan, and network identification.

UUI: (Default - Don't Pass)

Don't Pass (Default) - Don't Pass user specific information not pertaining to the call from one user to another.

Pass - Pass specific User information not pertaining to the call from one user to another.

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