Global Wireless Refresh: 73 Sites, 98% SLA Compliance

About the Client

A global IT services organization and internal estate of HCLTech (Global Systems Integrator), operating delivery centres, development facilities, and offices across Asia-Pacific, Europe, and the Americas. The client population consists entirely of technology professionals, making the internal estate a reference standard for the organization's own technology capabilities. HCLTech engaged Teceze as delivery partner for a global wireless refresh covering access point pre-deployment survey, installation, post-deployment validation, and hypercare.

At a glance

Industry: Global IT Services (Internal Estate)
Headquarters: Global operations across APAC, EMEA, and Americas
Products & services: Wireless access point deployment, site survey and validation, hypercare support, infrastructure modernization
Challenge: Programme scale, full lifecycle delivery, technically expert client, escalation management

Success highlights

98% SLA compliance across 73-site global programme
Pre- and post-deployment validation at every site
Four escalations managed transparently
All deployment activities completed within planned schedule
Evidence of coverage improvement delivered at every site
100% SLA compliance across Sri Lanka deployment
98 resources mobilized across three regions
Four-phase per-site methodology executed consistently
Technically expert client population exceeded expectations

The challenge

Delivering a Large-Scale Wireless Refresh for a Technically Expert Internal Estate

The constraint: Technically expert client base, internal reference-standard estate, exceptionally high execution bar

Large-scale wireless refresh for an IT services organization presents unique complexity: the client population consists entirely of technology professionals who understand infrastructure deeply, the internal estate serves as a reference standard for the organization’s own technology capabilities, and execution quality is judged against exceptionally high standards.

Our approach

Comprehensive Lifecycle Delivery with Validation and Escalation Transparency

Teceze implemented a four-phase per-site methodology combined with large-scale parallel deployment and transparent escalation management. The approach prioritized validation at every step, providing evidence of coverage improvement rather than relying on predictive design alone, and managed escalations through governance with full transparency. This model transformed a large-scale deployment into a validated, visible, professionally managed programme.

From challenge to transformation, the solution included:

Four-Phase Per-Site Methodology

Every site progressed through pre-deployment survey, AP installation, post-deployment survey, and hypercare—validating the wireless environment both before and after deployment rather than assuming design accuracy.

Large-Scale Parallel Deployment

98 resources were deployed across three regions, the largest resource mobilization in the portfolio, enabling 73 sites to complete within the six-month window.

Pre- and Post-Deployment Validation

Surveying both before and after installation produced evidence of coverage improvement at each site, providing the technical client with confidence in results.

Transparent Escalation Management

The four escalations recorded across the programme were managed through governance and reported openly, maintaining an accurate performance picture across a large and visible internal programme.

Governance and Reporting Cadence

Operational transparency and stakeholder alignment are critical to program success. A layered governance model keeps deployment progress and validation evidence visible across all three regions:

Cadence	Forum	Focus
Daily	Deployment Operations Tracker	Site completion status, survey results, urgent blockers
Weekly	Regional Deployment Review	Deployment pace by region, resource utilisation, escalation status
Bi-weekly	Cross-Region Sync	Coordination across regions, standardisation checks, risk items
Monthly	Programme Governance Call	Overall SLA performance, escalation summary, validation evidence review

The Results

Largest Site Footprint Delivered with Full Validation

98%SLA Compliance

73Sites Deployed

100%Validation Coverage

98%SLA compliance across regional deployment activities, including 100% compliance in Sri Lanka with zero escalations

73Sites deployed within the six-month schedule across three regions, coordinated by 98 engineers — the largest resource mobilization in the portfolio

100%Validation coverage delivered at every site, with four escalations managed transparently through governance without impacting the project schedule

Why it matters

Large-scale wireless refresh programmes create extreme execution complexity: coordinating 73 sites across three regions within a defined timeline, delivering a full four-phase lifecycle at every location, and maintaining consistent quality across the largest resource mobilization in the portfolio.

Managing four escalations transparently while maintaining schedule and SLA compliance demonstrates the operational maturity required for mission-critical infrastructure programmes.

What the client says

“Teceze didn’t just install access points they validated every site, provided proof of coverage improvement, and managed four escalations with complete transparency. For an organization where our internal infrastructure is a competitive differentiator, that level of rigor is essential. Their methodology and execution discipline exceeded our technical expectations, and we’re now using their validation framework as a model for our own customer deployments.”

– VP, Global Infrastructure & Technology Services, HCLTech

Delivery partnership

How Teceze Executes on This Engagement

Teceze provided comprehensive wireless refresh services including pre-deployment site surveying, access point installation and configuration, post-deployment coverage validation, and 30-day hypercare support across all 73 sites. The engagement included four-phase per-site methodology execution, transparent escalation governance, 98-engineer resource coordination across three regions, and quarterly business reviews to optimize wireless performance and identify additional modernization opportunities aligned with the organization’s digital transformation roadmap.

Looking ahead

Post-Engagement Value and Ongoing Partnership

The successful completion of this 73-site wireless deployment programme demonstrates Teceze’s capability to execute large-scale, technically complex infrastructure projects for demanding, technology-expert clients. The four-phase validation methodology and transparent escalation management established during this engagement create a reusable framework for future modernization initiatives. The programme’s success positions Teceze as a trusted partner capable of delivering infrastructure excellence to internal stakeholders while maintaining the quality standards the organization promotes to its own customer base.

Optimize Wireless Performance Across Deployed InfrastructureApply hypercare insights and performance data to optimize wireless configuration and ensure sustained coverage excellence across all 73 sites.
Evaluate Additional Infrastructure Modernization InitiativesAssess complementary infrastructure needs aligned with digital transformation to expand scope beyond wireless modernization.
Deploy Advanced Network Analytics and MonitoringImplement real-time wireless performance monitoring and analytics enabling proactive optimization and rapid issue resolution across all regions.
Establish Security Posture Enhancements for Wireless InfrastructureDevelop wireless security strategy aligned with the modernized infrastructure to strengthen protection against evolving threats.
Build Capability for IoT and Advanced Use CasesAssess wireless capability requirements for emerging IoT, video, and advanced use cases to prepare infrastructure for future demands.
Plan Integration with Enterprise Mobility StrategyDevelop integration approach between upgraded wireless infrastructure and enterprise mobility initiatives to maximize organizational value.