Completing PSTN migration marks the first milestone. The next is achieving continuous optimisation, ensuring performance, resilience and ROI are reviewed and refined.
Post-migration challenges surface once traffic ramps up. A solid post-migration optimisation plan validates the successful implementation and establishes a baseline for future transformations. Challenges are common, but manageable with the right approach.
Post-Migration Pitfalls
At Maintel, we ensure a robust post-migration plan. Here are some common pitfalls you want to avoid and areas we focus on in our plans:
Performance Blind Spots
Many organisations complete the cut-over but fail to monitor how the new IP environment behaves under real-world load, leaving performance issues undetected until they impact service.
Quality and Stability Issues
Poorly tuned QoS (Quality of Service) settings or uneven bandwidth allocation lead to VoIP jitter, latency and inconsistent call quality, affecting user experience and customer satisfaction.
Fragmented Oversight
Without a single view of usage, call quality and security, emerging issues go unnoticed until they impact service delivery and business operations.
Lost ROI
Failing to consolidate vendors or retire redundant services erodes the financial gains of migration and prevents organisations from realising the full value of their investment.
Defining Post-Migration Excellence
Once organisations have identified their main challenges, it’s important to define the north star that optimisation brings:
Integrated Voice and Data Fabric
By combining SD-WAN with voice-first routing, organisations ensure consistent performance across their estate. Centralised policy controls enable prioritisation of business-critical traffic, so essential services always remain resilient and reliable.
Actionable Insights
Real-time dashboards provide complete visibility into call quality, usage patterns and security events. Automated alerts flag anomalies as they occur, enabling teams to respond proactively and resolve issues before they impact users or customers.
Unified Communications Adoption
Bring voice, video and messaging into a single platform with unified communications to remove silos and simplify collaboration. With enhanced tools that support hybrid and remote working, teams become more productive, more connected and more satisfied in their roles.
Ensuring Security and Service Continuity
Andy Set, Head of Network & Carrier Services at Maintel – provides his expert insight into what to look out for
Post-migration security is where many organisations fall short. Moving to IP-based voice infrastructure opens new attack surfaces that traditional network security wasn’t designed to address. The good news? With the right approach, your new environment can be significantly more secure than legacy PSTN ever was.
At Maintel, we focus on:
Private SIP Infrastructure
Unlike public SIP trunks that route over the open internet, Maintel’s private SIP connectivity ensures your voice traffic travels over dedicated, secure pathways. This architecture dramatically reduces your attack surface whilst guaranteeing consistent call quality and meeting stringent compliance requirements for regulated sectors.
Zero-Trust Access for Modern Working
With hybrid and remote working now standard, securing access across distributed locations is critical. We implement zero-trust principles to ensure only authenticated users and devices can access your voice and data infrastructure, regardless of location. This protects your communications without compromising performance or user experience.
Continuous Compliance
For regulated sectors, compliance isn’t optional. We conduct regular audits against standards including PCI-DSS, NHS IG and industry-specific requirements to maintain regulatory adherence. This proactive approach prevents compliance gaps that could result in penalties or service restrictions.
Security and continuity shouldn’t be afterthoughts. They should be foundational to your post-migration strategy, protecting both your infrastructure investment and your business reputation.
Our Approach
Maintel partners with organisations to deliver detailed assessments of network security and performance through post-cutover health checks. To support and reassure our customers, 24/7 monitoring and proactive management is provided as standard with our managed service offering, all backed by stringent SLA support agreements.
We help identify opportunities for further digital transformation and strengthen performance, security and resilience across your communications infrastructure.
Ready to maximise your post-migration performance?
Benchmark your readiness using our PSTN self-assessment tool, explore our PSTN Hub for more resources, or speak with our experts to discuss your optimisation strategy.