Question: In a Lawful Interception (LI) scenario, when Call Waiting (CW) is invoked at the called party's access, how should the CW notification be handled by the target's switching node in relation to IRI-CONTINUE records?
Option 1: The CW notification should always initiate a new basic call sequence in a separate IRI-INITIAL record.
Option 2: The CW notification shall be included in an IRI-CONTINUE record, either as a separate record or as part of the next record in the basic call sequence.
Option 3: The switching node should discard the CW notification to avoid interfering with the ongoing LI process.
Option 4: The handling of the CW notification depends on the called party's subscription settings for LI transparency.
Explanation: This is correct because, according to the specified behavior for Lawful Interception when Call Waiting is invoked at the called party's end, the target's switching node must incorporate the CW notification into an IRI-CONTINUE record. This ensures that all relevant events related to the intercepted call are accurately logged in the continuation records, maintaining the integrity of the LI process without unnecessarily initiating new sequences for ancillary events like Call Waiting notifications.