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FieldDescription
Stop Far-End T310

Specifies whether or not a Q.931 PROGRESS message is sent to the far-end so that it does not timeout (T310) while the SIP response is pending from the SIP leg, causing the call to release.

This setting should be enabled when deploying the SBC 1000-2000 and Lync with Skype with a PSTN Provider. Only disable this parameter if your PSTN environment does not support PROGRESS sent before ALERT.

Indicated Channel

Specifies the ISDN Q931 Channel Identification attribute, telling the far end whether the channel identification selected in the

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SBC 1000/2000 setup message to the far end is fixed or suggested.

Caution: Always use Exclusive when it is supported by the peer switch.

TEI Assignment Type
Specifies the way the Terminal Equipment Identifier (TEI) is assigned by the
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SBC 1000/2000.
The TEI is a numbering mechanism used by the network termination (NT) side to distinguish between more than one terminal equipment (TE) devices to which it is physically connected.
TEI

Specifies the TEI to assign for BRI when set to user side. 0 through 63 are absolute values to assign. If signaling group is PRI or network side BRI this parameter is not used. This field is available only when the TEI Assignment Type is set to Static.

 Note: The value of 0 for Static TEI is valid only for NTT. Other BRI specifications allow a value of 0 through 63 for Static TEI.

Send Calling Name

Specifies whether or not the Q.931 SETUP message is sent to the far-end should include the DISPLAY Information Element (IE).
Available only when ISDN Side is set to User and the Switch Variant is set to NI2 or Euro-ISDN.

If this option is enabled, the DISPLAY IE is populated for NI2 or Euro-ISDN switch types, otherwise the DISPLAY IE is not populated for these switch types.

In general, the DISPLAY IE is populated according to ISDN communication standards. The NI2 and Euro-ISDN specifications state that the DISPLAY IE should not be populated. This option allows you to override that configuration for your environment.

Add Progress Indicator to Setup

This configuration option enables the ISDN Signaling Group to add/configure a Progress IE to the outbound SETUP message if it is not present. Options are as follows:

  • None (a Progress IE is not added if there is none present, and not modified if present)
  • Not end to end ISDN (call is not end to end ISDN)
  • Destination not ISDN (destination address is not ISDN)
  • Origination not ISDN (origination address is not ISDN)
  • Return to ISDN (call has returned to the ISDN)
  • Interworking Encountered (interworking has been encountered)
  • Inband Information (in-band information or appropriate pattern now available)
  • Delay Encountered (delay in response at destination interface)

Default entry: None.

Early Media for PI: 2(Dest not ISDN)

Defines how PROCEEDING/PROGRESS/ALERT messages are treated for Early Media. Valid options:

Enabled. The PI:2 (Destination not ISDN) value indicates that early media was received in PROCEEDING/PROGRESS/ALERT messages.

Disabled. The PI:2 (Destination not ISDN) value indicates that there was no early media received in PROCEEDING/PROGRESS/ALERT messages.

Note: Enabled is the default value, which indicates that PI values of 1, 2, and 8 are considered for early indicators of media; Disabled indicates that PI 2 is not considered for early media.

Include Channel Interface IdentifierSpecifies whether to include the Interface Identifier in the Channel Identification Information Element.
Channel Number BitSpecifies whether a bit associated with the channel number for a DMS-100 ISDN variant is set. This field is for Ribbon Support use only; do not change the default value of the Channel Number bit field.

Send Facility Message Passthrough

Specifies whether the Signaling Group transmits a Facility message passed through from another ISDN Signaling Group. This field is available only when Euro ISDN or QSIG is the value for the Switch Variant field.

Send Redirecting Number in Facility

Controls whether the redirecting number is sent in the Facility IE for EuroISDN (ETSI). This configuration also uses the following ASN.1 hard coded fields which are hidden for EuroISDN:

  • ASN.1 Protocol Identifier (set as default ROSE)
  • ASN.1 Numbering Space (set as default Local)

Valid entries: Enabled (sends the Redirecting number in Facility IE) or Disabled (default; does not send Redirecting number in Facility IE). This field is available only when EuroISDN is selected as the Switch Variant. All ETSI specific ISDN Signaling groups must be configured the same system-wide for this field.  

ASN.1 Protocol IdentifierSpecifies the Protocol Identifier to use within ASN.1 for QSIG. All QSIG specific ISDN Signaling groups must be configured the same system-wide for this field.
ASN.1 Numbering Space

Specifies the ASN.1 numbering space for QSIG. All QSIG specific ISDN Signaling groups must be configured the same system-wide for this field.

Include NFE and IA PDUSpecifies whether or not to include the Network Facility Extension and Interpretation APDU in ASN.1 for QSIG. All QSIG specific ISDN Signaling groups must be configured the same system-wide for this field.

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