H.323 to SIP Calls

For this type of call, the Oracle® Enterprise Session Border Controller checks the 200 OK message for a SIP PAI header and a SIP Privacy header. Before it sends a Connect message on the H.323 call leg, the Oracle® Enterprise Session Border Controller generates a Connected Number. It uses the Connected Number to insert a Q.931 Connected Number IE and an H.225 Connected Address alias (type E.164) into the Connect message. The Connected Number is generated in this way:

If the
- SIP PAI header is not found, or
- User part of its URI value is unknown or anonymous, or
- User part of its URI does not follow the H.225 NumberDigits syntax,
  then the Connect Number that the Oracle® Enterprise Session Border Controller generates is a Q.931 Connected Number IE that has no digits and a number type of unknown. In this case, the Oracle® Enterprise Session Border Controller will not insert an H.225 Connected Address alias into the Connect message.
  
  The presentation indicator is set to Number not available due to interworking, and the screening indicator to Network provided. The H.225 NumberDigits’s syntax requires that it be between 1 and 128 characters, and only contain these characters: 0 through 9, the pound sign (#), the asterisk (*), and the comma (,).
In all other cases, the Oracle® Enterprise Session Border Controller uses the user part of the URI as the digits for the Connected Number after it performs the following:
- Strips the plus sign in front of the number, if there is one
- Strips the IWF country code at the beginning of the number, if there is one

Then the Oracle® Enterprise Session Border Controller inserts the Connected Number into the Connect message as the Q.931 Connected Number IE and an H.225 Connected Address alias (type E.164).

If the IWF country code is found in the PAI, the Oracle® Enterprise Session Border Controller sets the type of Q.931 Connected Number IE to National Number. Otherwise, the Oracle® Enterprise Session Border Controller sets it to international. The screening indicator is set to Network provided, and the presentation indicator is set to Presentation Restricted if the Oracle® Enterprise Session Border Controller finds a SIP Privacy header with a value of id, or Presentation Allowed is there is not SIP Privacy header.