Greater Toronto Area & Canada

Enterprise Infrastructure Specialists.

When critical systems fail, organizations need someone who understands the full infrastructure stack — not a helpdesk ticket. We stabilize what others can't diagnose, specializing in OpenText RightFax, Azure infrastructure, and enterprise system reliability.

Free Consultation → Our Services
CCNP
Cisco Certified
25+
RightFax Deployments
99%
Client Satisfaction
system_status.monitor
RIGHTFAX_SERVICE
Queue backed up — 847 jobs pending. SIP trunk unresponsive.
AD_AUTHENTICATION
Intermittent login failures. Kerberos ticket delays detected.
AZURE_CONNECTIVITY
Hybrid sync degraded. On-prem latency elevated.
CITADEL_SENTINEL
Engaged. Root cause identified. Remediation in progress.
// This is what we solve every day █
Emergency Support
Dealing with a RightFax outage, failed migration, or critical system failure? Contact us now →

About

We solve what others
can't diagnose

Citadel Sentinel IT & Cybersecurity Solutions Inc. is a specialized infrastructure consulting firm based in Milton, Ontario, serving organizations across the Greater Toronto Area and Canada.

We help IT leaders and operations teams resolve infrastructure instability, critical system failures, and outages that impact business continuity, compliance, and service delivery. Our clients operate in high-stakes environments — healthcare, financial services, and regulated industries — where systems must perform reliably.

Founded by Saboor Ali, a CCNP-certified DevOps Engineer with deep enterprise IT experience spanning professional services, infrastructure security, and critical communications systems. Citadel Sentinel operates as a lean, expert-led consultancy. No layers of management. No junior technicians. Direct access to senior expertise on every engagement.

We work on a project, hourly, or managed retainer basis — structured around your operational needs and timeline, with emergency slots available when systems go down.

SME
RightFax Subject Matter Expert
CCNP
Cisco Certified Network Professional
25+
RightFax Deployments
SOC 2
Aligned Environments
95%
SLA Compliance Rate
HIPAA
PHIPA Compliance Experience

Services

What we do

Every engagement is scoped, executed, and validated by a senior engineer — not handed off to a helpdesk.

01 / RIGHTFAX
RightFax & Enterprise Fax Systems
Purpose-built OpenText RightFax expertise for enterprise & healthcare
  • Transmission failures, queue delays, and routing issues
  • Server maintenance, upgrades, and full configuration
  • API integration and downstream system connectivity
  • Full migration execution and post-cutover stabilization
  • Infrastructure dependency analysis: AD, DNS, SIP, VM
  • HIPAA / PHIPA compliant fax infrastructure
Hourly · Fixed project scope · Managed retainer
02 / CLOUD & MIGRATION
Setup & Migration Services
End-to-end deployment and platform transition — planned, executed, validated
  • Server deployment and environment configuration
  • Network device setup, hardening, and troubleshooting
  • Cloud onboarding and Microsoft Azure infrastructure
  • Secure data and system migrations with full validation
  • Software rollout, licensing, and user onboarding
  • UAT coordination and post-cutover stabilization
Fixed-price · Scoped after initial consultation
03 / SECURITY
Security & Patch Management
Proactive security operations to reduce exposure and maintain compliance
  • Patch management and coordinated update cycles
  • Vulnerability identification, prioritization, and reporting
  • Security configuration and hardening reviews
  • Risk assessment and structured remediation planning
  • Microsoft Defender for Endpoint monitoring
  • SOC 2 readiness and IAM governance
Monthly retainer · Project assessment · Hourly
04 / IT SUPPORT
IT Support & Infrastructure
Day-to-day IT operations and platform administration
  • Troubleshooting, incident triage, and resolution
  • Identity, login, and access management
  • Microsoft 365: Exchange, Teams, SharePoint
  • Active Directory and Windows Server administration
  • IT operations stabilization and process improvement
  • Vendor and third-party coordination
Hourly · Project-based · Ongoing retainer

Case Studies

Real engagements.
Proven outcomes.

Two enterprise RightFax engagements at major Canadian financial institutions — delivered on time, on scope, with zero post-cutover incidents.

Major Canadian Financial Institution
RightFax On-Premises to Azure Cloud Migration
Cloud Migration

Led the full lifecycle migration of a financial institution's on-premises RightFax infrastructure to Microsoft Azure. Designed network and systems architecture, built out high-availability Azure infrastructure including load balancing, SQL integration, and network security controls. Integrated RightFax with MuleSoft via SDK, deployed the RightFax Web Portal via IIS, and concluded with RightFax Connect implementation — eliminating physical fax infrastructure entirely.

100%
UAT Pass Rate
3 mo
Delivery
Zero
Post-Cutover Incidents
Azure IaaSRightFaxMuleSoft SDKAzure Load BalancerRightFax ConnectUAT
Major Canadian Financial Institution
RightFax DiD SIP Trunk Migration — 7-Phase
Telecom Migration

Managed and executed a complex 7-phase RightFax DiD SIP migration, transitioning from legacy PBX to a modern SIP trunk over three months. Each phase underwent formal CAB approval with ServiceNow change management. Coordinated directly with the telecom provider for DiD number porting, validated all configurations in a dev environment before production, and performed end-to-end testing after each phase. Concluded with full decommission of the legacy fax gateway.

7
Migration Phases
CAB
Governed Process
Zero
Rollbacks Required
SIP TrunkingRightFaxCAB GovernanceServiceNowTelecom CoordinationPBX Decommission

Emergency Support

When systems go down,
we respond

Emergency support is available for critical disruptions. Fast triage, honest assessment, rapid stabilization — no lengthy onboarding required.

📠
RightFax Outages
Transmission failures, stuck queues, service down. We understand the full infrastructure chain behind every failure.
⚙️
Failed Migrations
Cutover issues, rollback planning, environment recovery. We've managed complex multi-phase migrations under CAB governance.
🔐
Login & Access Failures
Active Directory issues, account lockouts, MFA failures, and authentication breakdowns across enterprise environments.
🖥️
Server Incidents
Crashes, performance degradation, OS-level failures — rapid diagnosis and stabilization across Windows Server environments.
🌐
Infrastructure Disruptions
Network, firewall, DNS, and connectivity failures. CCNP-level troubleshooting for complex enterprise environments.
☁️
Cloud & Azure Issues
Provisioning failures, sync errors, hybrid connectivity breakdowns — Azure infrastructure support from engineers who've built it.
Facing a critical issue right now?
Message us directly on LinkedIn or email for fastest response. Emergency slots are available.
Contact Us Now → LinkedIn

How We Work

Simple. Transparent.
Effective.

Every engagement follows the same structured approach — no guesswork, no hidden costs, no surprises.

01
Free Consultation
We take the time to understand your environment and recommend the right approach. No obligation. No sales pitch. Just an honest technical conversation.
02
Scoping & Planning
Clear scope, transparent pricing, and a realistic timeline — defined upfront so there are no surprises during delivery.
03
Execution
Senior-led delivery. We work directly in your environment with minimal disruption, keeping you informed at every stage.
04
Validation & Handoff
We validate outcomes against defined success criteria, document everything, and ensure your team is set up for long-term stability.

Why Citadel Sentinel

The difference expertise makes

01
Senior-Only Delivery
Every engagement is handled by a senior engineer with real enterprise experience. No junior handoffs, no account managers in between.
02
RightFax Specialists
One of the few consultancies in Canada with deep, hands-on OpenText RightFax expertise — migrations, integrations, and emergency outage recovery.
03
Regulated Industry Experience
Healthcare, financial services, and compliance-driven environments. We understand the operational and regulatory constraints you work within.
04
Flexible Engagement Models
Hourly, fixed-price project, or ongoing managed retainer. We structure every engagement around your budget and operational needs.
05
No Unnecessary Overhead
Lean consultancy model means faster response, direct communication, and no bloated retainer fees for support you don't need.
06
Free Initial Consultation
Every engagement starts with an honest technical conversation at no cost. We assess your environment and recommend the right path forward.

Contact

Start with a free
consultation

Whether you're dealing with an active outage, planning a migration, or looking to stabilize a critical system — reach out and we'll have an honest conversation about your situation and how we can help.

Emergency slots are available for critical disruptions. For the fastest response, message us directly on LinkedIn.

✉
info@citadelsentinel.ca
in
linkedin.com/company/citadel-sentinel-it
📍
Milton, Ontario · GTA & Canada · On-site, Hybrid, Remote
Free Initial Consultation
No obligation. No sales pitch. Just an honest technical conversation about your environment and what the right path forward looks like. Clear scope and pricing upfront.

Typically respond within 1 business day. For urgent issues, message directly on LinkedIn.