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Bellsystem24 – Haosao

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Over 13 years of experience in providing Contact Center and BPO solutions, With professionalism and thorough understanding of the difficulties in implementing customer service that businesses are facing.

Bellsystem24-Hoa Sao is committed to being a part of business success with honesty, passion and professionalism. We are proud to be an organization of global scope but understand the domestic market, always towards common goals.



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Minh Nguyen, ICT Deputy Director

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Countries of fulfillment




Contact information

1900 1739

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About OA

Outsource Accelerator is the trusted source of independent information, advisory and expert implementation of Business Process Outsourcing (BPO).

The #1 outsourcing authority

Outsource Accelerator offers the world’s leading aggregator marketplace for outsourcing. It specifically provides the conduit between world-leading outsourcing suppliers and the businesses – clients – across the globe.

The Outsource Accelerator website has over 5,000 articles, 350+ podcast episodes, and a comprehensive directory with 3,000+ BPO companies… all designed to make it easier for clients to learn about – and engage with – outsourcing.

About Derek Gallimore

Derek Gallimore has been in business for 20 years, outsourcing for over eight years, and has been living in Manila (the heart of global outsourcing) since 2014. Derek is the founder and CEO of Outsource Accelerator, and is regarded as a leading expert on all things outsourcing.

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