ISDN Interworking

ISDN Interworking Redirection takes the incoming ISDN message and interworks it to SIP signaling on the outbound leg so the Original Called Number can be identified on the SIP side. This information will be passed in the SIP Diversion Header. If Diversion Headers Support field in the SIP Profile - Headers object is enabled, the information contained in the diversion headers will be translated into two different information elements in the ISDN SETUP message. 

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Dialogic > IMG 2020 > Signaling  > ISDN > ISDN D Channel > ISDN BDN Group > New ISDN Interworking

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Related Topics and Dependencies

SIP Diversion Header 

Maximum Objects

One ISDN Interworking Redirecting object can be created per ISDN BDN Group object.

Field Descriptions

SIP Diversion Redirecting

Select from drop down menu whether to include the Redirecting Number or the Original Called Number in the outgoing SIP Diversion Header.

Redirecting (default) - Include theRedirecting Numberparameter in the ISDN SETUP message.

Original Called Number - Include theOriginal Called Number(OCN) in the ISDN SETUP message.

Null Dialed Number Substitution

Select from drop down menu whether to enable or disable the Null Dialed Number Substitution.

Enable - The content of thePhone Context Stringparameter is applied to the incoming ISDN dialed number, when it is null.

Disable - TheNull Dialed Number Substitutionparameter is disabled.

Phone Context String

Specify what number to substitute for the incoming null dialed number.

Null Dialed Number Substitution

SIP From Display

Select from drop down menu whether to enable or disable the SIP From Display / ISDN interworking.

Disable - The CallingName ISDN Information Element is ignored when present in reception and not provided in transmission.

Enable Display - In reception, the information element is interworked when carried in FACILITY or DISPLAY IE.

                             In transmission, the information in include in the DISPLAY IE.

Enable Calling Name Simple - In reception, the information element is interworked when carried in FACILITY or DISPLAY IE.

                                                    In transmission, the information in include in the FACILITY IE and namePresentationAllowedSimple format is used in the ISDN message.

Enable Calling Name Extended - In reception, the information element is interworked when carried in FACILITY or DISPLAY IE.

                                                        In transmission, the information in include in the FACILITY IE and namePresentationAllowedExtended format is used in the ISDN message.