BSS migrations have an unusually high failure rate. Customer-facing telco systems are interconnected, regulated, and high-volume — three risk factors most teams underestimate.
The five things we always do
Map every external system before writing code. Set up dual-running early. Migrate cohorts, not everyone. Plan the rollback as carefully as the cutover. Keep the old system warm for 90 days post-launch.
About the author
Keep reading
Related articles.
Keep talking
Talk to the engineering team
If you're shipping something into production and want a sanity check from people who've done it, we'd be glad to compare notes.