Nowadays, with the development of Internet services, the need to use a form of voice instead of landline phones is becoming popular and becoming a global trend. With Sip Trunking service, businesses can optimize voice call costs and maintain stable transmission quality.

 

What is Sip Trunking?

Sip Trunking – trunk line service: is a service that uses VoIP platform (Voice over Internet Protocol), which facilitates the connection between extensions and the Internet. When using Sip trunking, businesses will be equipped with IP PBX, create connections with 1900/1800 numbers or fixed numbers, mobile numbers. 

Sip trunking

Additionally, the phrase “sip trunking” can be interpreted by separating the words SIP – Trunk.

  • SIP is an acronym for Session Initiation Protocol (i.e. Session Initiation Protocol). Is an IP telephony signaling protocol used to create, modify, and terminate VoIP phone calls. From there, SIP describes the communications required to set up a phone call. 
  • Trunk To be a line, or a link that can connect multiple signals at the same time. The signals can carry any type of communication data. Not only that, trunking can also provide network access to multiple objects at the same time. By sharing the frequency or link, instead of providing them individually. 

Sip Trunking allows data and voice to be connected to the same line, thereby helping businesses communicate and connect with customers or within the business via IP. 

Functions and benefits of Sip Trunking

For businesses using solutions such as Call CenterContact Center then Sip Trunking will bring many benefits. Include:

  • Cost optimization, much cheaper than regular fixed fares;
  • Allows for easy and unlimited expansion;
  • Businesses can make or receive calls anywhere, anytime. 

Even if you change your work location, there is no need to spend money on installation or modification of facilities. Sip Trunking also allows you to route incoming calls when external situations occur, such as power outages, wifi loss, etc.

Sip Trunking can make multiple calls at the same time with stable transmission quality. The number or quality of calls will depend on the bandwidth that the customer registers.

How Sip Trunk Works

Your business using a trunk line can eliminate the physical connection to the phone company. This means you will not need a system of wires, circuit boards, etc. to connect to the telephone service provider (PSTN). SIP Trunking is installed on the Internet, completely replacing traditional analog phones. 

nguyên lý hoạt động của sip trunking

By using the service, businesses reduce multiple phone lines to a single point of entry, thereby significantly reducing the IT costs associated with maintaining those lines. In addition, DID (Direct Inward Dialing) or purchasing phone numbers is also less expensive when purchased with Sip Trunking. 

Traditionally, when DID is collected from a telephone company, there will be accompanying fees: DID, IT services, facilities (connection hardware, etc.),... If the accompanying service fees can be limited or eliminated, the price that businesses need to pay will be more affordable.

Notes for businesses when using Sip Trunking

When choosing Sip Trunking for your business, you need to understand the needs that come from the company's desires. Such as:

  • How many employees will be operating the calling system at the same time; 
  • Is call volume stable weekly or will it fluctuate from time to time; 
  • How much is the business willing to pay for the service?;
  • Is the company's need to expand or add new users happening quickly…?