Callosseum Call Centre

Customer Support Dedicated Teams Technical Support Tailored to Your Needs

Call Centre For Your Business

With us, you get reliable, transparent and fully dedicated partners, great flexibility and control over the whole outsourcing process. By working together, we make your venture a great success.

What we offer

Relax, we take over from here

We deliver the whole team - you retain full controll

We recruit your team based on your requirements


You can have the full control of the recruitment process – we filter through the current team members and new applicants and organise interviews


Otherwise, we do it on your behalf and, in both cases, take the full responsibility as an employer


We ensure that your team works as agreed and deal with all the statutory requirements whilst you maintain the full control

Exceptional service for half the price

Located in Serbia, Belgrade is a vibrant city, attracting almost 2 milion talented people


with high education and a high level of spoken and written

Spanish, German, English, French and Italian as well as other European languages


Belgrade is a good non-EU location for setting up a growth team

that can give their best at the job they do at half the price you’d pay in the EU.

keep track of our performance

Net Promoter Score | Average Handling Time | Service Level | First Call Resolution | Sales Conversion Rate


Key Performance Indicators listed above are usually required or applicable to majority of our projects.


Our current clients measure our success and ROI based on number of generated leads and/or if agreed targets are reached each month.

Company core values

Proactive “can do” attitude with client’s needs first


Pride in work – reputation outweighs profit every time


Teamwork and client-centric culture


Integrity: responsibility, honesty and trust


Commitment, consistency and attention to detail

become a partner

Our partners

By joining our team of operators, you embark on a journey full of new people and opportunities.
Come and find out for yourself.

Check out our workspace

Become a part of our team and enjoy our spacious new office in GTC Green Heart Complex located in New Belgrade.

This is a Call Centre in Serbia, Belgrade

Open Positions

German Operator

Customer Support for a Swiss Communication Provider
100 000 RSD + bonus

Italian Operator

Apply for future projects

English Operator

Apply for future projects

French Operator

Apply for future projects


Positive Work Environment

Only positive work environment and satisfied employees can lead to success


At Callosseum Call Centre, we value the extra effort employees put in and that shows through our versatile bonuses

Modern Workplace

Chill Space, Kitchen and Bar, Conference Room, Individual Work Station and much more

Private Health Insurance

Callosseum Call Centre is a company that takes care of its employees

Hybrid work

Work from home, office or combined. At Callosseum, you have a choice

In-house Training

Callosseum Call Centre has its own dedicated space for training and improving agents

Join our family