From cold calling to automated leads

GFS Group implemented a hybrid voicebot that combines a human opening of the call with AI that responds to questions beyond the script. The result is a stable and scalable production of high-quality leads without routine cold calling, with automated reachability around 42%.

GFS Group (Global Financial Solutions) is a financial advisory and service group that helps clients manage personal and corporate finances — typically mortgages and housing, insurance, investments and savings, as well as related real-estate or development services. It operates as an independent partner and works with dozens of financial institutions, allowing it to choose solutions across the market tailored to each client’s situation.

Initial situation and challenges

GFS Group had long been dealing with inefficiency in outbound calling:

• outgoing campaigns were costly
• top salespeople spent time on routine cold calling instead of closing deals
• team performance was inconsistent
• the inflow of quality opportunities was neither stable nor scalable

Solution

GFS Group, together with coworkers.ai, deployed a hybrid voicebot that combines a natural human voice with flexible AI. The outbound voicebot blends two components:

1. Human-recorded opening parts of the call
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GFS employees recorded the key opening lines and sections of the call script. As a result, the call starts authentically — as if a real advisor were calling.

2. An AI “brain” supported by a knowledge base
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Whenever the person being called asks a question outside the opening script, the AI immediately finds the answer in the knowledge base, formulates a sentence tailored to the specific situation, and then synthesizes it in a voice that is almost indistinguishable from the original salesperson’s voice.

The voicebot can respond much like a human colleague, but with the advantage of unlimited capacity. As a result, the conversation feels smooth, natural, and flexible. The hybrid model combines the best of both worlds: human authenticity at the start of the call and AI-driven flexibility and scalability throughout the conversation.

What did GFS Group gain from the implementation?

The voicebot handled thousands of calls with no human involvement

Hundreds of generated high-quality leads

7.1% sales effectiveness

Freeing valuable salespeople from inefficient cold calling

A scalable system that can grow without limits

Satisfaction

Although the project is still under development, it is achieving very convincing results.

15,000 outgoing calls

Almost every second person was reached without any effort from the sales team.

455 quality leads

Every 14th reached contact represented a relevant sales opportunity.

7.1% sales success rate

Většina procesu běží plně automatizovaně.

In the campaigns, we called a total of 15,000 contacts and successfully connected with 6,375 people. Through automation, we achieved a 42% reach rate. Almost every second person was reached without any effort from the sales team.

‍After manual review, 455 quality leads were generated. Every 14th reached contact represented a relevant sales opportunity.

The real sales success rate—i.e., the share of quality leads among reached contacts—reaches 7.1%. In purely outbound sales, this is a very strong result, especially given that most of the process runs fully automated.

“We chose Coworkers.ai because of their proactivity. Not only did they reach out to us themselves, but they immediately recommended a strategy and helped adapt the product exactly to our needs. The hybrid model and flexibility are essential for us. Today, if the bot isn’t calling, the sales reps immediately ask why. They want its leads.”

Hynek Pechlát

Team Manager, GFS Group

Plans for the future

GFS Group plans to continue systematically increasing sales success while also expanding call volume so they can reach more relevant contacts. Further development includes a direct CRM integration, which will simplify the sales team’s work and improve continuity for the next steps in the process. The goal is to gradually move toward full automation without the need for manual imports, so the entire flow of leads and data runs as smoothly as possible with minimal administration.

From cold calling to automated leads

Satisfaction

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