When UK-based financial services provider Debt Support faced challenges with their previous dialer solution, their trusted technology partner Metrotech looked for a more reliable and efficient alternative. The transition to SIP Caller transformed their daily operations, improving performance, stability, and reporting accuracy — all while maintaining seamless integration with 3CX.

The Challenge

Debt Support had relied on VoIP Tools Power Dialer integrated with their 3CX system for over two years. The solution was used to manage client payment schedules and account reviews required for financial regulations in their industry. However, recurring issues with reporting and platform stability were affecting both their internal efficiency and client relationships.

When the opportunity arose, Metrotech proposed trying SIP Caller — confident it would deliver the reliability and flexibility their client needed.

Why did your customer decide to move to SIP Caller from the previous product they were using?

Metrotech’s longstanding customer Debt Support, had utilised VoIP Tools power dialler, linked with their 3CX service we provide, for over 2 years. The dialler was to help manage their client payment schedules and account reviews required for financial regulations in their industry.

In this time they had encountered several issues with the reporting output required for their CRM and also platform stability, which had negative impact on their client relationship and regulatory bodies.

When Metrotech had the opportunity to introduce SIP Caller as a replacement, while still utilising 3CX, they were more than willing to try out the product on our recommendation. SIP Caller’s Team with Ernesto and Mariano were fully engaged in the project from the 1st day setting up the 30day trial period and creating custom script needed to meet Debt Support’s CRM reporting input. This allow campaigns to be tested straight away, giving Debt Support’s manager and Directors real time results.

The Results

From the very first week, both Metrotech and Debt Support noticed significant improvements in efficiency and usability. SIP Caller’s intuitive dashboard, custom reporting, and campaign flexibility enabled the team to optimize performance and gain valuable insights in real time.

What were the main benefits of adopting SIP Caller? Do you have any performance improvement metrics you can share?

From the first week of the trial Metrotech and Debt Support saw the improvements of the SIP Caller dialler platform. The intuitive dashboard allowed line managers to setup and manage campaigns simply and effectively. Reports were customised by the SIP Caller team to meet their CRM needs and they continued to amend these as the trial progressed, when small adjustments were requested.

For Metrotech and our client the move to SIP Caller has been transformative. The campaign success levels have been much higher, adjusted to the available agents on the day and utilising automatic Voicemail detection.

Reliability and Support

SIP Caller’s stability and responsiveness stood out as key strengths. Throughout more than 12 months of continuous use, the platform has remained stable and fully operational — with only minor tweaks promptly handled by the support team.

How was your overall experience with the SIP Caller technical support? How responsive was the support team?

SIP Caller’s team has been on hand from the 1st day of the trial period and now with Live platform’s usage. Any enquiry was answered very quickly, with adjustments or custom platform changes made within 24hours.

Did you experience any issues with the platform?

SIP Caller has had no stability issues during the 12 months it has been in use with Debt Support. Only needing small adjustments in voicemail detection and report outputs, which were resolved in a timely manner by their team.

Partner Testimony

Metrotech’s technical and sales have been thrilled with the results provided by SIP Caller, which has strengthened our customer relationship with Debt Support even further. The ability to utilise SIP Caller so easily with our 3CX services now allows our sales team to engage with more customers to explore future opportunities, confident in a positive outcome seen with Debt Support.
— Joshua Armstrong, Operations Director, Metrotech

Conclusion

SIP Caller’s seamless integration with 3CX, flexible campaign management, and dedicated technical support are helping partners like Metrotech deliver measurable improvements for their customers.

We’re proud to see SIP Caller making a real impact — improving operations, strengthening client relationships, and empowering our partners to grow confidently.

Are you a 3CX partner looking to enhance your dialer offering?
👉 Discover how SIP Caller can help.