Customer Story
Customer
Telefónica Chile Now operating as Tigo
Solution
Hacom eMessaging SMS Suite
Implementation
6-month migration
Result
Delivery success from ~92% to 99.5%
Continuity
100% traffic migrated with zero downtime
About the Customer
A major operator modernizes its SMS infrastructure
Telefónica Chile (TMCh), a leading telecommunications provider in Latin America, set out to modernize its legacy SMS messaging infrastructure to improve cost efficiency, scalability, and service quality. The objective was to migrate 100% of SMS traffic to Hacom’s eMessaging SMS Suite without service disruption while adding anti-fraud capabilities and geo-redundancy.
The project was completed from May 2024 to January 2025, with 90% of traffic migrated in 2024 and the remaining 10% completed in early 2025 due to operational freeze periods.
Note: Telefónica Chile has since been acquired by Tigo and rebranded accordingly.
The Challenge
Replacing a live SMS platform at scale with zero room for error
Replacing a live SMS platform at operator scale is a high-risk transformation. TMCh needed to move all traffic off its legacy environment while preserving continuity for subscriber and enterprise messaging services, and at the same time improve platform resilience and reduce fraud exposure.
The project also had to be delivered faster than a typical migration cycle. The benchmark was an estimated 12-month implementation window, while TMCh needed a tighter execution timeline with tightly controlled migration risk.
Why Hacom
Three technical differentiators that made a difference
Active-active architecture from day one.
The eMessaging Suite’s native active-active design allowed Hacom to run both the legacy and new platforms simultaneously, enabling a controlled, phased traffic cutover across four migration windows – each validated jointly by Hacom engineers and TMCh’s security and operations teams before traffic was transferred.
Geo-redundant deployment as standard.
Hacom committed to a dual-site deployment (Chiloe and Independencia) activated from initial go-live, giving TMCh automatic failover resilience from the moment the first traffic window was cut over.
Built-in A2P fraud and anti-spam capabilities.
Rather than requiring a separate integration phase, Hacom’s anti-fraud and anti-spam modules were activated as part of the core migration – delivering new A2P monetisation controls in the same deployment cycle.
The Solution
Dual-site, active-active deployment - phased, validated, and live from day one
Hacom deployed the eMessaging SMS Suite in a dual-site configuration across Chiloe and Independencia, creating a geo-redundant active-active architecture designed for resilience and failover readiness. This approach allowed the migration to proceed without requiring changes to TMCh’s existing interconnection platforms, which reduced complexity and lowered implementation risk.
The migration was executed in four controlled windows with joint validation between Hacom and TMCh’s security and operations teams. That phased approach enabled 90% of traffic to be migrated ahead of the final completion phase and helped maintain stable service throughout the transition.
- Platform: Hacom eMessaging SMS Suite (SMSC + A2P Monetisation modules
- Deployment model: Dual-site active-active (Chiloe / Independencia)
- Protocols: SMPP, Diameter - aligned to TMCh's existing interconnection stack
- Migration structure: 4 controlled cutover windows, phased traffic transfer
- Support model:24/7 monitoring, dedicated Hacom technical team, real-time log visibility
- Go-live:90% of traffic migrated by end of 2024; 100% complete January 2025
The Solution
Dual-site, active-active deployment - phased, validated, and live from day one
The project delivered both measurable performance gains and a stronger operational foundation for future growth.
The migration improved SMS delivery success to 99.5%, cut implementation time in half versus the estimated benchmark, and remained transparent to end users with no service interruptions reported. It also gave TMCh stronger visibility into errors and performance through real-time monitoring and protocol-level logs, while establishing a more scalable messaging platform for future growth.
“Hacom’s expertise and agile execution ensured a smooth migration, exceeding our expectations. Their platform’s reliability and new anti-fraud features have already added value to our operations.”
– Daniela Perez, Project Leader, TMCh
Modernising your SMS infrastructure?
Talk to our team about how Hacom’s eMessaging SMS Suite delivers zero-downtime migrations, active-active resilience, and built-in A2P fraud protection for Tier-1 operators.