Client case · Banking & finance
A regional bank streamlines telephony across 8 sites
A regional bank present in 4 WAEMU countries, with 250 employees spread across 8 sites. A heterogeneous legacy telephony system inherited from a history of mergers, high operator bills, degraded audio quality.

-42%
on the annual telecom bill
4 months
of coordinated rollout
8 sites
multi-country WAEMU
Project challenges
What the client needed to solve
- Unify 3 different telephony systems into one, without disruption during business hours
- Reduce operator costs (inter-site interconnections billed at a premium rate)
- Ensure PCI-DSS compliance and call traceability (BCEAO regulation)
- Train 250 employees on the new ways of working (video, softphones, mobility)
Our intervention
The Sylamtech solution
- Audit of the existing setup and mapping of call flows (2 weeks)
- Target architecture: Yealink IP + cloud IPBX with SD-WAN interconnection between sites
- Phased rollout (1 site every two weeks) with no interruption to operations
- On-site user training + video materials provided by our Sylamtech.Forge centre
- Maintenance contract with a 4-business-hour response time and local spare-parts stock in our SN and CI subsidiaries
Technologies deployed
Yealink T54W · Yealink T58W · cloud IPBX · SD-WAN
Measured results
The impact on the business
- Telecom bill reduced by 42% from the first quarter after the rollout
- 8 sites connected to a unified numbering plan
- HD audio quality on 100% of handsets (vs 70% on average before)
- PCI-DSS audit approved without reservation by the statutory auditor
About this reference
This client's name has been anonymised at their request for confidentiality reasons. The figures, technologies and results presented are real and come from the project actually delivered by Sylamtech.GROUP. Named references are available on request, subject to a confidentiality agreement.
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