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How TLF Research secures thousands of telephone interviews whilst ensuring rapid access and compliance with data protection legislation
Last updated: 1 September 2026
Based in West Yorkshire, TLF Research is a customer experience research and consultancy agency with a proven track record of helping businesses grow through improved customer experience, satisfaction and loyalty.
As a full-service agency, TLF has worked with clients including Calor, Direct Line, Saint Gobain and Wates, alongside a number of public sector organisations, supporting every stage of the research journey from planning through to delivery and reporting.
TLF needed to record over 120,000 telephone interviews a year and store them securely, meeting data protection legislation including GDPR, and external audit requirements for ISO 9001 and ISO 27001.
Just as importantly, recordings had to stay quick and easy to retrieve, so researchers and quality teams could find the right interview for the right project without wasting time.
Secure storage of recordings containing personal data, in line with GDPR and data protection legislation
Quick access to specific interviews by project from well over 100,000 recordings a year
Clear evidence of quality and information security controls for external auditors
"Vidicode UK have been great to work with, easy to deal with and responsive to all queries, it has been a true partnership."
All calls from the TLF research centre are recorded on the Vidicode UK Apresa call recording system. Recordings are used daily to monitor service quality, support adherence to industry standards and train colleagues internally across sectors including construction, B2B, energy, financial services and housing.
The Apresa web browser interface offers comprehensive search and replay, annotated notes and colour-coded categorisation, making it easy to find, replay and save recordings by project. Apresa provides secure, encrypted storage with a full audit trail, and GDPR-specific features including on-demand recording cessation and management of opt-outs. For training, agent screen activity can be recorded alongside the call to give a complete view of the customer interaction.
Building on three years of call recording success, TLF Research expanded its partnership with Vidicode UK in 2025 to cover its full telecommunications infrastructure, including:
✓ Complete phone system management
✓ SIP trunks with 3CX VoIP connectivity
✓ A single, unified platform for all voice communications
How Apresa supports TLF Research's quality, compliance and training every day
Find, replay and save any interview quickly through a simple web browser interface, with recordings organised by project.
Secure, encrypted storage and a complete audit trail provide the evidence needed for ISO 9001 and ISO 27001 audits.
Add notes and colour-coded categories to recordings so important interviews are easy to organise and revisit.
On-demand recording cessation and management of opt-outs help TLF respect participants' data protection rights.
Agent screen activity can be recorded alongside the call, giving a complete view of each interaction for coaching.
Recordings support ongoing checks on interviewer quality and adherence to industry standards across every secto
Working with TLF, a company handling very high call volumes, has been a pleasure. Businesses in the market research sector see clear benefits from automated call recording, from providing recorded evidence of interviewer quality and client reassurance, to supporting interviewer training and adding value to client reporting.
Our solutions for similar organisations in this industry can be enhanced with advanced speech analytics through our VoiceCrunch AI feature, which detects emotion, words and phrases and transcribes calls. We also offer call graphs, enhanced statistics, quality monitoring and call scoring, and screen recording for a fuller view of interviewer activity.
Join TLF Research and hundreds of other businesses who trust Vidicode UK's UK-based team for secure, compliant call recording, backed by over 30 years of experience.