DNIS (Dialed Number Identification Service)

Manage and route incoming calls based on the dialed number, enhancing call handling efficiency.

What Is DNIS (Dialed Number Identification Service)?

DNIS, stands for Dialed Number Identification Service, is a telephony feature that provides the dialed phone number to the recipients.

DNIS can also change the name of an incoming call, allowing you to customize the name of a specific trunk and identify which trunk the call is coming from.

This feature is especially useful for businesses and call centers that handle multiple phone numbers for different services or clients. If you are struggling to manage numerous phone numbers and want to streamline your call flow, it might be time to adopt DNIS technology in your call center.

How Does DNIS Work?

How does DNIS Work

To use DNIS, users need to configure their IP phones to display which trunk is handling the call.

When a caller dials a phone number, the call is automatically routed to a specific destination by the ACD (Automatic Call Distributor) system. Along with the call, DNIS information is sent through the telephone network to identify the dialed number.

You can assign different numbers to different product lines, helping to direct incoming calls to the appropriate agent or department. Additionally, DNIS can be combined with an advanced IVR (Interactive Voice Response) system to provide support at the right time and in the right language.

Why Does Dialed Number Identification Service Matter?

DNIS (Dialed Number Identification Service) is a powerful tool for managing and routing incoming calls based on the dialed number, enhancing the effectiveness of call handling. Here are some key benefits:

Increase First-call Resolution Rate


Rich Contextual Information


Enhanced Customer Experience


Scalability for Business Growth


Easy Cost Management


Get DNIS & All the Call Center Service You Need

Besides DNIS, Yeastar offers a range of features designed to optimize call center operations, making it easy for agents and supervisors to deliver high-quality service.

The all-in-one solution includes a comprehensive set of intelligent features, providing a user-friendly visual workspace that streamlines all inbound activities. By this, Yeastar call center solution helps businesses of all sizes boost engagement, enhance collaboration, and create exceptional customer experiences that can scale.

All-inclusive Call Center Features

Automatic Call Routing (ACD) Skill-based Routing Multi-language IVR Priority Queues
Ring Group Custom Greeting Music on Hold Business hours
Call Monitoring Call Recording Call Forwarding Callback
Caller ID Missed call Disposition Queue Call Logs Visual Voicemail
Queue Panel Wallboard SLA (Service Level Agreement) Call Center Reports
Omnichannel Messaging CRM Integration CTI More features

Common FAQs of DNIS(Dialed Number Identification Service)

What is the difference between DNIS and ANI?


DNIS (Dialed Number Identification Service) and ANI (Automatic Number Identification) are telecommunication services that provide different types of information and serve distinct purposes.

Information Provided:

  • DNIS: Provides the dialed number (the number the caller called).
  • ANI: Provides the caller’s number (the number from which the call was made).

Use Cases:

  • DNIS: Used for routing calls to the right department or agent based on the service or product the caller is inquiring about.
  • ANI: Used for identifying the caller, logging call data, and sometimes for security and verification purposes.

Example in Context:

  • DNIS: A company has different numbers for different services. DNIS helps in routing calls to the appropriate service based on the dialed number.
  • ANI: A customer calls a support line. ANI provides the support agent with the caller’s phone number, and you can use it to retrieve the caller’s account details.

In summary, DNIS helps businesses understand which service or product the caller is interested in by identifying the dialed number, while ANI helps in identifying who the caller is by providing the caller’s phone number. Both services are crucial for efficient call management and customer service.

Is DNIS suitable for all types of businesses?


How can DNIS improve operational efficiency?


Yeastar P-Series Phone System

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Available both in the cloud and on-premises, Yeastar P-Series Phone System unites calls, video, omnichannel messaging, integrations and more in one simple system for your seamless communications anywhere.

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