Broadcast SMS

Broadcast SMS (also known as bulk or mass text messaging), lets you send an SMS to many contacts at once*.

Send text messages to all your contacts at once with broadcast SMS

Whether you need to promote a new product, notify customers of a sale, or send important updates, broadcast SMS messaging can help you reach your customers instantly and efficiently. In this page, we'll explore the benefits of mass SMS messaging for business customers and provide tips on how to get started.

What is broadcast SMS?

Broadcast SMS is a type of SMS messaging service that allows businesses or individuals to send a single text message to a large group of people simultaneously. It is also commonly known as bulk SMS or mass texting.

Broadcast SMS is often used for marketing purposes, such as promoting a new product or service, announcing a sale or discount, or sending reminders or notifications to customers. It can also be used for internal communications within a company, such as sending updates to employees or alerting them to a company-wide event or announcement.

Unlike individual text messages, broadcast SMS is sent to a group of recipients who have opted-in to receive messages from the sender. It is typically delivered using an SMS gateway provider, which is a service that allows businesses or individuals to send and receive SMS messages via the internet.

Overall, broadcast SMS is an effective way to reach a large audience quickly and efficiently. However, it is important for businesses and individuals to ensure that their messages are relevant and useful to their recipients, in order to avoid being seen as spammy or intrusive.

The benefits of broadcast SMS

Broadcast SMS services are a powerful marketing and communication tool that can help businesses increase engagement, reach a wider audience, and save money on marketing costs.


Sending SMS messages to a large group of recipients is much more cost-effective than traditional marketing methods such as print, radio, or TV ads.

High open rates

SMS messages have a very high open rate, with studies showing that over 90% of SMS messages are read within 3 minutes of being received. This makes SMS an effective way to get your message in front of a large audience quickly.

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Increased engagement

SMS messages are more likely to be read and responded to than other types of communication, making them a great way to engage with customers or employees.

Easy to track

Most broadcast SMS services offer detailed reporting and analytics, allowing businesses to track the effectiveness of their campaigns and make adjustments as needed.

Overall, mass text messaging can help businesses increase engagement, reach a wider audience, and save money on marketing costs.

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How to use broadcast SMS

Find out more in our help guide for broadcast SMS.

Sign up to Chalkboard to get a virtual mobile number for business.

Go to the Phonebook tab in the Chalkboard app, tap Lists at the top, then Create new list. Give your list a name then add the contacts you want to broadcast to.

Now head to the Messages tab, tap the + icon, then tap Lists. From here you'll be able to see the list you created, type your broadcast message and tap send!

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The easy way for the whole team to send a broadcast SMS

Chalkboard gives you all the business calling and messaging features you need (including mass SMS), without a phone system.

Completely flexible

Text and call as a team with shared or private numbers. Flexible and simple.

Takes minutes to set up

No contracts, no phone system, no SIM cards, and no configuration. Just install the app and go!

All the features you need

Including missed call auto-reply, working hours, voicemail, and much more...

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It's the easy way for your team to broadcast SMS, mass text and call together without the hassle and complexity of a phone system!

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FAQs: Broadcast SMS features

Whats the difference between a normal message and a broadcast message?

Both broadcast messages and messages sent directly from your chats are sent as standard SMS messages, the only difference is that sending a broadcast SMS gives you the ability to send one custom message to multiple numbers in one go.

How do I know a broadcast message has been sent?

When your broadcast SMS is sent, we add the message directly to your Chats threads for each of the numbers in the list - you'll notice the broadcast speakerphone icon under the message bubble so you can tell what was sent as a broadcast message, and what was part of a normal conversation.

Will the person receiving the broadcast message know it's a broadcast?

No way! The person receiving the broadcast SMS will receive the message as a standard SMS message, we only make it clear within Chalkboard using the broadcast icon which messages have been sent as broadcasts for your reference.

Is there any extra costs for broadcast SMS with Chalkboard?

There are no extra charges. Broadcast SMS is available as standard to all Chalkboard users. There are fair use terms that apply to the use of all of our services.

Do you need permission to send a mass text broadcast?

Yes, you need permission to send an SMS message to someone with Chalkboard. Our terms of service have more information, but in summary, the recipient must consent to receive messages from you.

*To send messages to US phone numbers from 10-Digit Long-Code (10DLC) phone numbers you need to register with The Campaign Registry (TCR). The associated fees are collected by Chalkboard and paid in full to TCR. You can learn more about A2P 10DLC registration.