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STCM Removal from Gamma Trunk - Number Migration to Enhanced Trunk - Phase 3
Scheduled for May 2, 13:00 - 23:00 BST
Scheduled
Reason: As phase 1 & phase 2 have been completed and all DDI's now have an endpoint prefix, DDI's can be migrated to the enhanced trunk. This will be carried out in batches of 1000.
Impact: There is no impact to the DDI's when migrating based on a prefix change between two endpoints and no product removal. Calls will continue on the old route until the new route is applied.
Checks: Periodic checks throughout the process will take place to ensure DDI's are migrating successfully
Rollback: No rollback plan required. Checks on prefixes will be undertaken before this work starts to ensure no failures during migration
User actions: No user actions are required for this work.
Posted Apr 29, 2026 - 10:43 BST
This scheduled maintenance affects: Core Platform (B/W) (Call Processing).