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.
Web GUI Page
Dialogic > IMG 2020 > Signaling > ISDN > ISDN D Channel > ISDN BDN Group > New ISDN Interworking
Related Topics and Dependencies
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.
Only one OCN parameter can be interworked. If more than one OCN IE is received in the incoming setup messaging, the first OCN parameter is interworked and any subsequent parameters are ignored.
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.
When an ISDN incoming call with no dialed number is received and Null Dialed Number Substitution is Disable, the call is rejected
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.