Đầu số Hotline

What is the Hotline number? Find out details about Hotline numbers

For every business, owning a beautiful hotline number also contributes to the building of an image and brand. To build a brand takes a lot of time and effort, no matter how big or small, it is equally important to contribute to the overall development of the business, especially in the digital age like today..

Along with the strong development of technology, businesses have also been paying great attention to customer care support. Especially businesses operating in the service sector, in order to retain customers for as long as possible, best respond to requests from users and customers, turn new customers into patrons, and turn regular customers into loyal customers. necessary, or to expand the customer file, improve the reputation, etc., a lot of advantages to make businesses interested.

So today we will discuss about which Hotline and Hotline numbers are suitable for your business below!

1. What is the Hotline number?

Hotline number or hotline is a common communication channel of businesses to receive feedback from customers when they have needs. They are used a lot in business or customer care services to show the modernity and professionalism of the business, bringing efficiency and customer satisfaction.

Dau So Hotline La Gi Tim Hieu Chi Tiet Ve Dau So HotlineThe concept of Hotline number

2. Types of Hotline numbers

2.1 Number 1900

The 1900 switchboard is a sales and consulting switchboard in Vietnam. The 1900 switchboard charges callers, is effectively applied to sales offices, customer care, chain stores, fast delivery, ticket offices of businesses and organizations.

Dau So Hotline La Gi Tim Hieu Chi Tiet Ve Dau So Hotline 1Duel 1900


The number 1900 can be said to be the most mentioned number of businesses when they want to be a hotline number for businesses. The features of this number can be mentioned as follows:

  • Customers who call in cost money : The rate that customers have to pay varies according to the type of registration number of the business (from 1,000 VND / 1 minute to 8,000 VND / 1 minute)
  • There is a discount for businesses : Businesses that register for a first number will enjoy a discount from the total revenue of call charges. The discount will depend on the carrier and the number that the business registers (from 26% – 40%).
  • How to charge : according to block 1 minute + 1 minute: That is, less than 60s is counted as 1 minute, from the 61st second is counted as 2 minutes…
  • How it works : The number can only receive calls to one direction and cannot be dialed out.


  • Easy to remember : The first number 1900 has only 2 main forms, the form with 8 numbers and the form with 10 numbers, which includes 1900 at the beginning. Therefore, the number 1900 makes it easier for customers to remember
  • Easy to advertise : The 1900 number can be deployed nationwide, regardless of area code. Therefore, the promotion of the first number is also very simple.
  • There is a discount for businesses : Because of the characteristics of this number, there is a discount according to the revenue of call charges for businesses. If the volume of call charges is high, this is indeed not a small amount.
  • Professionalism : Owning a 1900 number will increase the professionalism and reputation of the business.


Of course, the 1900 number also has certain disadvantages:

  • Forcing a charge notice in the greeting on the switchboard : This is a mandatory regulation of the network operator in order to be transparent about the charge that customers will have to pay per minute of calling.
  • Customers are afraid to pay high costs
  • Difficult to choose the number you want : Because the length of the number 1900 is only 8 to 10 characters, of which 1900 has taken up 4 characters. Not to mention the characters that regulate the network operator, the charge rate… That’s why choosing a number according to your preferences is also quite difficult.
  • How it works : Can only receive calls, so the switchboard needs to have an additional phone number to meet the calling needs of the business.

2.2 No. 1800

This is a type of hotline number, customer care, 1800 number is free for customers when calling. Thus, to register this number, businesses need to determine that they will spend a cost to maintain as well as pay for customers. The 1800 number only allows incoming calls, does not allow outgoing calls.

Dau So Hotline La Gi Tim Hieu Chi Tiet Ve Dau So Hotline 2No. 1800


  • Free call charges: The 1800 number has the biggest feature that is free of charge for customers when calling in. Charges incurred will be paid by the registered enterprise using the number.
  • Call only: Like the 1900 number, the 1800 number can only receive calls from customers.


  • Increase customers calling in: Because it is a toll-free number, it will stimulate more customers to call in
  • Easy to remember, easy to advertise: The 1800 number is similar to the 1900 number, it can be deployed nationwide, regardless of the area code.


  • Costs: In addition to the initial deployment and installation costs. Businesses also have to pay additional costs incurred by customers calling
  • It is difficult to manage the arising charge because it is not known in advance how long the customer will call in
  • Easy to be disrupted: Because it is a toll-free number, it is impossible to avoid calls from people who have no need for the business’s services, not to mention bad opponents (However, this disadvantage has been recognized. partially overcome thanks to disruptive number blocking tools)
  • The number head can only receive calls, so if the business needs to contact customers, it must be equipped with an additional call-out number.

2.3 Mobile phone number

This is the number used by most small and medium enterprises, business households, and shops. Because of its inherent mobility, ease of deployment, and flexibility.


Previously, mobile phone numbers were used for personal purposes by default. But now with developed technology, mobile phone numbers have been integrated into the switchboard to serve as hotline numbers for businesses.


  • Popular
  • The monthly subscription cost is quite low
  • Regardless of area code
  • The number is easy to remember, easy to choose the number you want


  • Although it has been developed into a switchboard number, users still have the mentality of being a personal number
  • The cost of calling outside the network is also quite high.

2.4 Fixed numbers

This is a phone number used in an administrative boundary area, usually a province or city. The current fixed number is mainly developed for business customers, with high requirements for performance, the ability to meet more complex needs and requirements. The number allows outgoing and incoming calls and supports outgoing and incoming international calls.

Dau So Hotline La Gi Tim Hieu Chi Tiet Ve Dau So Hotline 3Fixed prefix


  • Popularity : This is the first feature that needs to be mentioned when it comes to fixed numbers. There are area codes that are too familiar to customers such as 024 Hanoi, 028 Ho Chi Minh City…
  • Two-way interaction : Can both receive and call back to customers without having to equip an additional number
  • Fixed number registered and used for business only


  • Cheap monthly subscription cost
  • You can make and receive calls at the same time. In addition, the cost of calling out, especially local calls, is also quite low
  • Enhance credibility : Fixed numbers are only for businesses, so customers calling in will also feel more secure and reputable.
  • Easy to identify business areas


  • The first number is long (11 digits) so it’s hard to remember
  • Synchronizing numbers is also difficult : If an enterprise has many offices and branches in different provinces, it is very difficult to choose the same number but only the area code for the business is different. This makes it more difficult to recognize the brand.

3. Conclusion

Above is all the information about the Hotline numbers that we want to share. Good luck!

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