What are the two supported platforms for a LGW Deployment?

The correct choice highlights the two supported platforms for a Local Gateway (LGW) Deployment, which are the Cisco CUBE (Cisco Unified Border Element) that operates in an IP-based mode and the IOS Gateway that uses TDM (Time-Division Multiplexing).

Using a Cisco CUBE allows for robust SIP (Session Initiation Protocol) handling and provides functionalities like security and media transcoding, making it suitable for VoIP communications and integrating with various networks. On the other hand, the IOS Gateway, primarily dealing with traditional telephony systems, is vital for environments where TDM is still prevalent, ensuring interoperability with legacy phone services.

By encompassing both IP-based and TDM-based solutions, this option reflects the flexibility necessary to implement LGW deployments in diverse network scenarios. The other options do not capture this versatility, being limited to specific platforms or methodologies that do not represent the full capabilities of LGW deployment configurations.