SIP to H.323 Calls

For this type of call, the Oracle® Enterprise Session Border Controller checks the Connect that it receives for a Q.931 Connected Number IE. If it does not find one, then it continues by checking for H.225 Connected Address alias (either E.164 or Public Party Number). Then, it takes one of the following courses of action depending on circumstances:

If it finds the Q.931 Connected Number IE, the Oracle® Enterprise Session Border Controller extracts the screening indicator and the presentation indicator.
If there is no Q.931 Connected Number IE, the Oracle® Enterprise Session Border Controller extracts the screening indicator and the presentation indicator from the H.225 Connect-UUIE of the Connect message.

With these pieces of information in place, the Oracle® Enterprise Session Border Controller performs the conversion from H.323 Connected Number IE to SIP P-Asserted-Identity (PAI) header if and only if the screening indicator is either one of the following:

Network provided
User-provided, verified and passed

Then the Oracle® Enterprise Session Border Controller adds a SIP PAI header (with URI value) to the 200 OK message that it sends in the SIP call leg. The user part of the URI is set to the value of the Q.931 Connected Number IE’s numberDigits field, or to dialDigits value from the Connected Address alias. When the number type is a national number, the Oracle® Enterprise Session Border Controller adds a plus sign (+) and the IWF country code (that you configure) to the beginning of the user part. If the number type is an international number, the Oracle® Enterprise Session Border Controller only adds a plus sign (+). And when the Connected Number is empty, the Oracle® Enterprise Session Border Controller sets the user part of the PAI header URI to anonymous. When the value in the presentation indicator is Presentation restricted, the Oracle® Enterprise Session Border Controller adds the SIP Privacy header (with the value id) to the 200 OK.

In cases when it does not find a screening indicator, the Oracle® Enterprise Session Border Controller will not perform the conversion from the H.323 Connected Number IE to the SIP P-Asserted-Identity (PAI) header.