How to build an effective Customer Care Center (Call Center)

To enhance customer experience and increase revenue, many Vietnamese businesses choose a customer service center as an effective solution. Building a Call Center not only helps save costs but also creates a professional support process. With the right strategy and a clear understanding of customer behavior, you can absolutely implement a suitable customer service for your business.

Michael_R-Tiptory
Michael R. Lewis Nội dung được xác thực bởi chuyên gia
Cách xây dựng trung tâm chăm sóc khách hàng (Call Center) hiệu quả

According to statistics from Vietnam's service market, over 70% of small and medium-sized enterprises are looking to optimize customer service to increase revenue and retain existing customers. Among these, the call center model is considered a cost-effective solution that yields high efficiency if implemented correctly.

If you are researching how to build a customer service center, want to know where to start, how much capital is needed, or if you can operate from home or need to rent an office – this article will help you visualize each practical step.

Whether starting small with a few remote employees or developing into a professional customer service center, you can certainly build a model that fits your budget and long-term goals. The key is having the right strategy, understanding customer behavior, and establishing a well-organized operation from the outset.

How to set up and operate a call center

You can open a standalone call center or integrate it into an existing business.

  • You can establish a customer service center as a separate business model to provide services to multiple other businesses.

  • Or implement an internal call center to support sales, post-sales care, and complaint handling for your own company.

  • If you're just starting, the integrated model helps save costs and makes it easier to control service quality. Once you have operational experience, you can expand it into a professional service provider.

Clearly define the type of call center before implementation.

  • Choose between an inbound call center (receiving incoming calls) and an outbound call center (making calls for consulting, customer care, telesales).

  • If you focus on telemarketing or phone sales, you will need call scripts, clear KPIs, and a Customer Relationship Management (CRM) system.

  • If handling incoming calls, prioritize training communication skills, situation handling, and establishing professional customer service procedures.

  • Defining the correct model from the start helps optimize costs, recruit the right personnel, and facilitate future expansion.

Comply with legal regulations when operating a customer service center.

  • Register a business license for the correct industry related to customer service or consultation hotline.

  • Check regulations on customer data privacy, especially when conducting telesales or storing personal information.

  • Ensure employment contracts, taxes, and other legal obligations are fully met to avoid long-term risks.

  • Legal compliance not only helps the business operate sustainably but also builds trust with partners.

Effectively find customers and service contracts.

  • Actively contact small and medium-sized businesses without a professional customer service department to offer services.

  • Collaborate with marketing companies, e-commerce platforms, or online sales units that need to expand their telesales teams.

  • Prepare a clear capability profile: operational processes, call center system, personnel, and quality commitment.

  • Utilize LinkedIn, company websites, and personal connections to reach B2B clients.

Part 1: How to set up a professional customer service call center

Step 1: Choose the appropriate type of call center

Clearly define the customer service center model from the outset.

  • The choice of call center type will determine which business customer segments you target and how you build your services.

  • The right model helps optimize costs, ensure accurate recruitment, and facilitate easier contract signing.

  • Before implementing, ask yourself: do you want to focus on sales, customer service, or technical support?

Inbound call center – Receiving incoming calls

  • Suitable for businesses requiring professional customer service.

  • Tasks often include:

    • Taking orders.

    • Answering product/service inquiries.

    • Providing technical support or handling complaints.

  • This model requires clear processes, communication skill training, and an efficient customer information management system.

Outbound call center – Making calls for consulting, sales

  • Focuses on telesales, selling products, or scheduling appointments.

  • Key tasks include:

    • Introducing products and services.

    • Setting appointments for the sales team.

    • Conducting market surveys.

  • Requires call scripts, specific KPIs, and a CRM system to track effectiveness.

Telemarketing – Marketing via phone

  • A form of promoting products or services directly over the phone.

  • Content often revolves around:

    • Describing key features.

    • Announcing promotions.

    • Persuading customers to try.

  • Suitable for businesses looking to increase brand recognition and stimulate quick purchases.

Web-enabled call center – Online platform support

  • Customers click a "Call" or "Talk" button on the website and connect directly via computer.

  • Often used for:

    • Consultation before ordering.

    • Online technical support.

    • Help desk services.

  • This model optimizes the digital experience and is suitable for e-commerce businesses.

Step 2: Legal procedures for opening a call center

Research local legal regulations before operating.

  • Contact local financial and tax authorities for guidance on business registration procedures.

  • Prepare a complete business establishment dossier or household business registration according to the correct industry related to customer service, consultation hotline, or call center.

  • Pay the prescribed fees to ensure the business operates legally from the outset.

  • Completing procedures early helps avoid the risk of penalties or business interruptions.

Fulfill tax obligations and obtain all necessary licenses.

  • Register a tax code and file taxes according to the business type.

  • If providing services to multiple partners, clear contracts and invoicing according to regulations are required.

  • Check requirements related to customer data privacy, especially when operating a customer service center that stores personal information.

Check regulations on business location if working from home.

  • Contact the construction management agency or urban management office to confirm if business registration is permitted in your residential area.

  • Some localities have specific regulations on noise, signage, and the number of employees working from home.

  • If growth is rapid, consider renting an office to ensure professionalism and long-term legal compliance.

Step 3: Develop a call center business plan

Develop a detailed business plan from the outset.

  • A business plan is the foundation when starting a customer service center business.

  • The content needs to align with the type you choose: inbound, outbound, telesales, or technical support hotline.

  • A clear plan helps you control costs, forecast profits, and avoid financial risks.

Revenue forecasts and growth targets.

  • Estimate revenue for each phase: 3 months, 6 months, and 1 year.

  • Determine the number of service contracts needed to break even.

  • Calculate operational capacity: how many calls each employee handles per day.

  • Provide realistic growth scenarios instead of setting overly ambitious goals from the start.

Detailed calculation of operating costs.

  • Fixed costs: office rent (if applicable), call center system, CRM software, internet.

  • Personnel costs: salaries, bonuses, insurance, customer service skill training.

  • Marketing and B2B customer acquisition costs.

  • Allocate a budget reserve for at least 3-6 months to ensure the call center operates stably during the initial phase.

Develop a marketing strategy and acquire contracts.

  • Identify target customer segments: e-commerce businesses, education, real estate, or finance.

  • Plan outreach via email, LinkedIn, workshops, or marketing partners.

  • Prepare a capability profile showcasing operational processes and commitment to service quality.

Prepare documents for fundraising when necessary.

  • A detailed business plan shows your seriousness about the call center business model.

  • Helps convince investors or financial institutions when seeking capital for expansion.

  • This document also serves as a guide to monitor effectiveness and adjust strategies at each stage.

Step 4: Equip the call center

Invest in basic infrastructure for stable operation

  • Computers with sufficiently powerful configurations for each employee.

  • Specialized headsets with noise-canceling microphones to ensure call quality.

  • Desk phones (if needed) and a suitable PBX system.

  • High-speed, stable internet connection to avoid service interruptions.

  • Necessary office supplies for a professional working environment.

Weak infrastructure is a common reason why customer service centers lose contracts from the initial stage.

Choose suitable call center management software

  • Call management software is needed to:

    • Track incoming and outgoing calls.

    • Store contact history and customer data.

    • Manage employee performance.

  • If the client does not provide their own system, you must proactively invest in PBX and CRM software.

  • Carefully compare costs, scalability, and integration capabilities before deciding, as software costs can account for a significant portion of the call center business model.

Separate lines for business operations

  • It is advisable to register a separate phone number for customer service to ensure professionalism.

  • When scaling up, more PBX lines are needed to handle increased call volumes.

  • Build a system with flexible scalability to avoid having to change the entire infrastructure when the number of employees increases.

Part 2: Marketing Strategy for Call Center Services

Step 1: Find customers for your call center

Actively approach businesses needing outsourcing

  • Identify companies that need to outsource customer service or telesales.

  • Prioritize e-commerce, education, insurance, and real estate businesses – industries with high call volumes.

  • Each company has different quality requirements and payment levels, so careful evaluation is needed before signing a contract.

Directly contact sales or inside sales departments

  • Call or email the sales departments of large local businesses.

  • Briefly introduce the operational capabilities of the customer service center, PBX system, and personnel team.

  • Propose specific solutions instead of just generally introducing services. For example: reduce missed call rates, increase conversion rates.

Seek opportunities through online channels

  • Search for terms like “outsourced call center,” “outsourcing customer care,” “outsourced telesales services.”

  • Join business groups on LinkedIn or business communities to connect directly with decision-makers.

  • Build a clear service website to increase credibility and support the negotiation process.

Choose contracts appropriate for actual capacity

  • Do not take on too many projects when the team is still small.

  • Prioritize medium-sized contracts to build experience and standard processes.

  • Calculate profit based on personnel, software, and infrastructure costs before accepting a price.

Step 2: Find remote work opportunities for call centers

Search for companies hiring for work-from-home services

  • Actively search online for businesses that need to hire remote customer service personnel or provide work-from-home call center services.

  • You can look for positions such as: online customer support staff, remote telesales, phone survey takers, or technical support.

  • How to search:

    • Search with keywords like “work-from-home customer service jobs,” “remote telesales,” “remote tech support.”

    • Check listings of companies hiring remote staff on major job sites.

Consider reputable call center service providers

  • Many companies connecting businesses with remote staff are widely active in the market.

  • These entities often have fair work management and payment systems for remote staff.

  • Through research, you can better understand the market demand for work-from-home call center services.

Notes when choosing remote work partners

  • Carefully read contract terms and skill requirements before applying or registering for services.

  • Clearly check salary, work schedule, and support policies, as each company has different standards.

  • Focus on companies with good reviews and transparent recruitment processes to ensure sustainable career opportunities.

Step 3: Promote and expand relationships for call centers

Implement multi-channel promotion to increase credibility

  • Place small advertisements in local business magazines and newsletters to reach business owners.

  • Build a professional Facebook fan page clearly introducing customer service, telesales, and call center outsourcing services.

  • Invest in a dedicated website describing in detail the operational processes, PBX system, SLA commitments, and customer feedback.

  • Website content should be optimized for keywords such as “call center services” and “outsourced customer service center” to improve natural search rankings.

Focus on building reputation instead of just cheap advertising

  • Share actual case studies: by how much the conversion rate increased, by how many missed calls decreased.

  • Post expert analysis on PBX management and enhancing customer experience to demonstrate capability.

  • Ensure clear contact information and quick responses to create a professional impression.

Join industry organizations and communities

  • Join local business associations to expand B2B relationships.

  • Participate in industry-specific groups on customer service and contact centers to learn new trends.

  • Leverage networking events to meet decision-makers directly, instead of just sending service introduction emails.

Maintain a long-term connection strategy

  • Follow up and nurture relationships that have been approached, even if a contract isn't signed immediately.

  • Build an image of a professional, reliable, and scalable customer service center.

Part 3: Experience in developing a customer service call center

Step 1: Recruit staff for the call center

Clearly define recruitment needs before expanding

  • Calculate the average number of calls per day to determine how many employees are needed.

  • Divide specific positions: customer service representative, telesales, shift supervisor, quality manager.

  • Recruit at the right time to avoid understaffing when signing new contracts or overstaffing leading to wasted costs.

Post job advertisements on multiple channels

  • Post advertisements in local newspapers, on recruitment websites, and in job groups.

  • Clearly describe job requirements in the customer service center, income level, KPIs, and career advancement opportunities.

  • Specify the working environment (in-office or remote) to attract the right candidates.

Survey market salary benchmarks before proposing compensation

  • Research common salary levels at similar call centers in the area.

  • Balance operational budget and the ability to retain staff long-term.

  • Design performance-based bonus mechanisms to increase work motivation.

Prioritize candidates with relevant experience and skills

  • Look for individuals who have previously worked in customer service or telephone sales.

  • Thoroughly evaluate communication skills, problem-solving abilities, and quick decision-making.

  • Conduct mock scenario interviews to test reflexes and emotional control.

Train and standardize processes after recruitment

  • Develop clear call scripts and complaint handling procedures.

  • Train listening skills, persuasion, and customer information management.

  • Regularly monitor performance to maintain stable service quality.

Step 2: Move to a larger office when expanding

Determine when to transition from a work-from-home model

  • As the number of contracts increases and more personnel need to be hired, working from home makes quality and discipline difficult to control.

  • A separate space helps build the image of a professional customer service center and fosters trust with partners.

  • A centralized office also helps manage KPIs, training, and call monitoring more effectively.

Choosing the right location for a call center

  • Prioritize buildings with low noise levels to ensure clear call quality.

  • Flexible space that can be expanded to accommodate more seating as the business grows.

  • Stable internet infrastructure with backup plans to prevent service disruptions.

  • Reliable power and telephone lines to ensure continuous operation.

Calculating rental costs and expansion potential

  • Balance rental costs with the current revenue of the call center business.

  • Negotiate lease agreements with flexible terms regarding space or duration.

  • Prioritize locations with convenient transportation to attract and retain long-term staff.

Step 3: Focus on a Niche Market

Choose a specialized field to create a competitive advantage

  • Instead of serving all industries, focus on a specific group such as clinics, software companies, or telecommunications businesses.

  • When specializing, you understand the processes, terminology, and customer needs of that industry.

  • This helps the customer service center build an image as an expert rather than just a general service provider.

Develop tailored solutions for each industry

  • Clinics: appointment scheduling, re-examination reminders, insurance inquiry handling.

  • Software companies: technical support, system error reception, usage instructions.

  • Telecommunications businesses: service registration, contract renewal, troubleshooting.

  • By providing specialized solutions, you can command higher prices and retain customers long-term.

Optimize marketing for each target customer group

  • Design promotional content focused on "customer service for clinics" or "software technical support call center."

  • Run advertisements and build websites targeting specific industries instead of a broad approach.

  • Participate in industry-specific events to directly reach decision-makers.

Leverage referral strategies and incentives

  • Offer discounts or incentives to customers who refer partners in the same industry.

  • Build a network within the professional community to expand contracts.

  • As reputation grows in a specific field, finding new customers becomes easier and less costly.

Starting a Call Center from Home

Leverage the remote work model to start a business

  • Many businesses now allow staff to provide remote customer service or do telesales from home.

  • You can start as a collaborator or independent contractor before opening your own customer service center.

  • This approach helps reduce office rental costs and limits financial risks in the initial phase.

  • At the same time, you gain operational experience and understand the requirements of corporate clients before scaling up.

Prepare for high professional pressure

  • Call center work is intense, handling many calls continuously every day.

  • Not all customers are polite; the anonymous environment over the phone can lead some people to behave disrespectfully.

  • Staff need to be trained in emotional control, situation handling, and maintaining a professional attitude in all circumstances.

Build a support system to reduce stress

  • Establish clear complaint handling procedures so employees don't have to manage alone.

  • Rotate shifts and provide adequate rest periods to avoid overload.

  • Monitor call quality and provide psychological support to the team when necessary.

References

  1. VoIP-Info. (n.d.). Web enabled call center. Retrieved from http://www.voip-info.org/wiki/view/Web+Enabled+Call+Center
  2. U.S. Small Business Administration (SBA). (n.d.). Writing a business plan. Retrieved from https://www.sba.gov/writing-business-plan
  3. Capterra. (n.d.). Call center software. Retrieved from https://www.capterra.com/call-center-software/

Translator: Ashley Wright Nguyen.

Michael_R-Tiptory
Michael R. Lewis Business Advisor

Michael R. Lewis is a former executive, entrepreneur, and investment advisor in Texas, with over 40 years of business and finance experience.

Updated on Ngày 16 tháng 07 năm 2026 (GMT +7)

3 comments

Mình từng hăng hái tuyển nhân viên cho Call Center, nhưng quên mất phải đào tạo kỹ năng giao tiếp. Kết quả là khách hàng gọi vào nghe nhân viên trả lời như robot 🤖. Bài học rút ra: Call Center mà thiếu sự thân thiện thì coi như mất điểm ngay.

Dương LiêmFeb 20, 2026

Lúc đầu mình nghĩ xây dựng trung tâm chăm sóc khách hàng chỉ cần vài cái điện thoại. Ai ngờ đâu, chưa đầy một tuần đã biến thành “trung tâm than phiền” vì khách gọi vào toàn hỏi… giờ xổ số 😅.

Phan Lập QuyếtFeb 20, 2026

Mình từng thử mở một cái “mini Call Center” ngay trong phòng khách. Kết quả là hàng xóm tưởng mình bán bảo hiểm, gọi liên tục để hỏi gói khuyến mãi 🤦. Đúng là chưa có quy trình thì dễ thành… tổng đài hàng xóm.

Lý NhànFeb 20, 2026

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Practical knowledge

Expert Q&A

In-depth analysis and practical advice from leading experts.

A Call Center, or customer care center, is where requests are received and handled via phone or online channels. For small businesses, building a Call Center helps improve customer experience, create a professional image, and increase long-term customer retention.

The cost of setting up a Call Center depends on its scale, technology, and number of employees. Businesses can start with a small model, using virtual PBX software to save costs, and then gradually expand as demand increases. This is the optimal approach for the Vietnamese market.

To effectively manage a customer care center, businesses need to establish clear procedures, train staff in communication skills, and utilize call management software. Monitoring metrics such as response time and satisfaction levels will help improve service quality.

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