Question: In the context of the Gs interface network service specification for Serving GPRS Support Node (SGSN) - Visitors Location Register (VLR), what is the requirement regarding error correction protocol based on modifications to ANSI T1.111.3 for MTP Level 2 on the T1 Interface?
Option 1: Both basic and enhanced error correction protocols are mandatory.
Option 2: Only the enhanced error correction protocol is required.
Option 3: Error correction protocols are not required for this interface.
Option 4: Only the basic error correction protocol is required, with enhanced error correction being non-applicable.
Explanation: According to the specified modifications to ANSI T1.111.3 for MTP Level 2 on the T1 Interface in the Gs interface network service specification, only the basic error correction protocol is mandated, with enhanced error correction not being required. This ensures a standardized, simplified approach to error handling across the SGSN and VLR entities, focusing on basic error correction for reliability without the complexity of enhanced protocols.