NYSE: IDT
Products

Discover how our products can revolutionize the way you communicate and collaborate.

Voice

Explore our advanced voice solutions designed to optimize your communication workflows.

Diverse range of DID number solutions designed to enhance your communication capabilities.

Experience unparalleled communication efficiency with our advanced SIP Trunking Solutions.

Cutting-edge technology to proactively detect and neutralize spam flags on your DID Numbers.

Messaging

Wherever your audience is, our platform ensures seamless messaging across diverse channels.

Build customer journeys by fostering interactive conversations, all within the framework of your app.ย 

Connect with your audience in a simple and effective way through our cutting-edge SMS platform.ย 

BYOC

Harness the power of IDT as your chosen carrier while leveraging your platform’s advanced features and services.

Integrate Twilio with our robust carrier routing platform to achieve unparalleled Voice termination system.

Experience reliable and high-quality communication services while leveraging the advanced capabilities of Genesys.ย 

Integrate IDT with the collaborative strength of MS Teams, unlocking efficient and feature-rich communication.ย 

Experience the power of our carrier network seamlessly connected to Plivo through our cutting-edge BYOC solution.ย 

Tools

Experience the power of our online voice tools, designed to simplify communication management.ย 

Ensure the authenticity and integrity of outbound calls with our STIR/SHAKEN Verification Check tool.ย 

User-friendly tool to verify the reputation of your business number, ensuring that it remains trusted.ย 

Compare and gain insights into outbound call expenses, optimize budget, and make informed decisions.ย 

Easily estimate and compare the costs associated with different DID numbers providers.ย 

Compare inbound VoIP rates among top CPaaS providers and optimize your inbound call costs.ย 

Generate custom SMS templates.ย 

Learn

Empower yourself with the resources you need to thrive in the dynamic landscape of communication.

Articles covering a wide range of topics.

Get answers to common queries.

Find instructions to make the most of our products.

Discover telecom insights and trends.

Find definitions of popular telecom terms.

Explore how our solutions have helped businesses.

Latest telecom trends, innovations, and market insights.

Company

A global telecom partner built to meet your needs.ย 

Discover the story behind our commitment to delivering innovative solutions to connect people and businesses worldwide.ย 

Learn about our robust network infrastructure that spans across the globe, ensuring reliable and secure connectivity.ย 

Got a question, feedback, or need assistance? Our dedicated team is here to help!

Find partners or sign up for partnership programs.

NYSE: IDT
LEARN

DLR (Delivery Reporting)

In this article

DLR (Delivery Report) in the context of SMS (Short Message Service) refers to a notification sent by the SMS service provider to the sender’s system or application confirming the delivery status of a previously sent SMS message. DLRs are crucial for ensuring the reliability of SMS delivery and for tracking the success or failure of message transmission.

What information is typically included in a DLR report?

A typical DLR report includes the following information:

1. Message ID: A unique identifier assigned to the SMS message when it was sent. This ID is used to track the specific message in the delivery reporting process.

2. Recipient Number: The phone number or destination address to which the SMS message was sent.

3. Status: Indicates the current status of the message delivery. Common statuses include:

Delivered: The message has been successfully delivered to the recipient’s device.

Undelivered: The message could not be delivered to the recipient’s device.

Expired: The message delivery attempt has timed out without being successfully delivered.

Rejected: The message was rejected by the recipient’s network or device.
Queued: The message is still in the process of being delivered and is queued for transmission.

4. Timestamps: Timestamps indicating when various delivery events occurred, such as when the message was sent, when it was delivered, or when delivery attempts failed.

5. Error Codes (if applicable): In cases where the message delivery fails, error codes may be provided to indicate the reason for the failure. These codes help diagnose issues such as invalid recipient numbers, network errors, or message content restrictions.

DLR reports are crucial for monitoring the performance of SMS messaging campaigns, ensuring timely communication with recipients, and troubleshooting delivery issues. By receiving DLRs, senders can track the status of their messages in real-time and take appropriate action based on the delivery outcome.

Share this article

Meet our wholesale voice routing

Fulfill all your voice calling needs with our category leading wholesale A-Z Voice Termination.
Try IDT Express for a $25 Credit

Get $25 Free Trial Credit

You could be interested in

Learn

AIML (Artificial Intelligence Markup Language)

AIML, or Artificial Intelligence Markup Language, is a specialized markup language designed for creating conversational...
Learn

VLN (Virtual Long Number)

A VLN, or Virtual Long Number, refers to a virtual phone number that is typically...
Learn

WSDL (Web Services Description Language)

WSDL (Web Services Description Language) is an XML-based language used to describe the functionalities, operations,...