Question: In the context of controlling Trunking Media Gateways, what is the primary purpose of allowing wildcarding (e.g., `tdm/*`, `tdm/s_3/*`) in number fields (`"<unit #>"`)?
Option 1: To enforce a specific TDM Termination name structure across all port types.
Option 2: To enable flexible selection or specification of multiple termination points at different hierarchical levels (e.g., slot, STM-1, E1).
Option 3: To restrict access to certain TDM Terminations based on their hierarchical level.
Option 4: To standardize the naming convention for heterogeneous TMGW port configurations.
Explanation: Wildcarding allows for flexible selection or specification of multiple termination points at various levels, facilitating versatile and efficient control over Trunking Media Gateways. This enables broad application of commands without needing to specify each termination point individually, streamlining management operations.