Question: What triggers the automatic synchronization mechanism in a Contact Manager External client, if default policy parameters are present in "Provisioning.xml"?
Option 1: User manual initiation through a mobile application interface
Option 2: Either a time-based or a contact update count threshold, as specified in the default policy parameters
Option 3: Network operator's remote configuration update
Option 4: Device (ME) restart after a software update
Explanation: According to the specifications for Contact Manager External client capabilities, if default policy parameters are stored in "Provisioning.xml", these parameters dictate the triggering mechanism. Specifically, this mechanism is based either on time (e.g., scheduled intervals) or on the number of updated contacts (e.g., after a certain number of changes), ensuring seamless and transparent synchronization for the end-user.