• 4,000 firms
  • Independent
  • Trusted
Save up to 70% on staff

Home » Glossary » Primary rate interface

Primary rate interface

Definition

What is a primary rate interface (PRI)?

The primary rate interface (PRI) enables enterprises to transmit voice and data through the integrated services digital network (ISDN). On a single phone line, it can accommodate up to 23 B channels. 

A PRI-enabled communications system allows several users to have extensions and numbers on a single line.

What is primary rate interface (PRI)

What are the functions of the primary rate interface?

Here are some functions that a primary rate interface can provide:

Direct inward dialing

The primary rate interface can be set up for up to 23 users in a company. This means anybody calling from outside the organization can reach their intended contact or department directly through a single line.

For big businesses, it is normal to have up to 50 users associated with a single PRI, which implies 50 different phone lines all operating over the same primary rate interface circuit at the same time.

Additional circuit

An additional PRI circuit can be acquired and connected to the existing system, allowing for an additional 23 channels for voice, data, or video transmissions.

As the company grows and expands, it is increasingly possible that additional conversations will take place at the same time.

What are the benefits of using a primary rate interface?

There are several benefits to using a primary rate interface, and these include the following:

Efficiency

Due to their dedicated line structure, high-quality calls performed over a primary rate interface are created considerably faster, which benefits your organization. 

Reliability

Primary rate interface lines ensure reliability by empowering the central office. It allows them to remain operational during power outages.

Security

Analog trunk lines are simple to connect if you have no technical skills since primary rate interfaces are digital. They also offer an extra measure of protection and privacy to your conversations.

Flexibility

PRI lines are adaptable since various channels can be used for communication or data, allowing more data to be transferred in a given period.

Straightforward billing

A single primary rate interface line saves time and money compared to purchasing 30 separate telephone lines and having them all installed and then terminated later.

Get Inside Outsourcing

An insider's view on why remote and offshore staffing is radically changing the future of work.

Order now

Start your
journey today

  • Independent
  • Secure
  • Transparent

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, 450+ podcast episodes, and a comprehensive directory with 4,000+ 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.

“Excellent service for outsourcing advice and expertise for my business.”

Learn more
Banner Image
Get 3 Free Quotes Verified Outsourcing Suppliers
4,000 firms.Just 2 minutes to complete.
SAVE UP TO
70% ON STAFF COSTS
Learn more

Connect with over 4,000 outsourcing services providers.

Banner Image

Transform your business with skilled offshore talent.

  • 4,000 firms
  • Simple
  • Transparent
Banner Image