Revolutionize communications with
our programmable SMS API
Reach your customers with automated SMS
texting using your trusted business numbers
and our SMS APIs.
Engage your customers in meaningful ways through SMS using
chatbots, surveys, appointment reminders, notifications, promotional
messages, and more. RingCentral SMS gives you the ability to send
1 to 10,000 messages at a time.
Automate personal and marketing SMS with integrated voice,
video, and data for seamless communications.
Try for freeEnable High Volume SMS
Send and receive text messages
Send and receive images, videos, and files with MMS
Send Bulk SMS with automated message queuing
Ready to use SMS Marketing apps and solutions
Use your existing business numbers for SMS
Full Office numbers with voice, video, fax, and data
Opt-in/ Opt-out handling with subscriber reporting
Long message concatenation for more detailed SMS messages
Group SMS and MMS to chat with multiple users
Two-way multi-source API and phone text messaging
Automated text message notifications via SMS webhooks
Single SMS endpoint and interface
SMS API code samples
Adding SMS to your application couldn’t be easier with our SDKs for Java, C#, PHP, JavaScript, and more.
- JavaScript
- Python
- PHP
- Java
- C#
- Ruby
function send_sms(){
platform.post('/account/~/extension/~/sms', {
from: {'phoneNumber': RINGCENTRAL_USERNAME},
to: [{'phoneNumber': RECIPIENT}],
text: 'Hello World from JavaScript'
});
}
platform.post('/restapi/v1.0/account/~/extension/~/sms',
{
'from' : { 'phoneNumber': RINGCENTRAL_USERNAME },
'to' : [ {'phoneNumber': RECIPIENT} ],
'text' : 'Hello World from Python'
})
$resp = $platform->post('/account/~/extension/~/sms',
array(
'from' => array ('phoneNumber' => $RINGCENTRAL_USERNAME),
'to' => array(array('phoneNumber' => $RECIPIENT)),
'text' => 'Hello World from PHP'
));
public static void sendSms() throws RestException, IOException {
RestClient rc = new RestClient(RINGCENTRAL_CLIENTID, RINGCENTRAL_CLIENTSECRET, RINGCENTRAL_SERVER);
rc.authorize(RINGCENTRAL_USERNAME, RINGCENTRAL_EXTENSION, RINGCENTRAL_PASSWORD);
CreateSMSMessage postParameters = new CreateSMSMessage();
postParameters.from = new MessageStoreCallerInfoRequest().phoneNumber(RINGCENTRAL_USERNAME);
postParameters.to = new MessageStoreCallerInfoRequest[]{new MessageStoreCallerInfoRequest().phoneNumber(RECIPIENT_NUMBER)};
postParameters.text = "Hello World from Java";
var response = rc.restapi().account().extension().sms().post(postParameters);
}
static private async Task send_sms()
{
RestClient rc = new RestClient(RINGCENTRAL_CLIENTID, RINGCENTRAL_CLIENTSECRET, false);
await rc.Authorize(RINGCENTRAL_USERNAME, RINGCENTRAL_EXTENSION, RINGCENTRAL_PASSWORD);
var parameters = new CreateSMSMessage();
parameters.from = new MessageStoreCallerInfoRequest { phoneNumber = RINGCENTRAL_USERNAME };
parameters.to = new MessageStoreCallerInfoRequest[] { new MessageStoreCallerInfoRequest { phoneNumber = RECIPIENT } };
parameters.text = "Hello World from C#";
var resp = await rc.Restapi().Account().Extension().Sms().Post(parameters);
}
resp = rc.post('/restapi/v1.0/account/~/extension/~/sms', payload: {
to: [{phoneNumber: RECIPIENT}],
from: {phoneNumber: RINGCENTRAL_USERNAME},
text: 'Hello World from Ruby'
})
Simple API pricing, starting at free!
The RingCentral API is included with select RingCentral Office® plans. High Volume and
International SMS are available as add-ons with a minimal per message fee.
Low-volume SMS (P2P)
Send up to
200 messages per day
FREE
HIGH-VOLUME SMS (A2P)
Send up to
250,000 messages per day
$0.007
per message sent/received
International SMS
Limitations depend on carriers
and regulations in each country
in Admin Portal
SMS API frequently asked questions
To help you get started sending and receiving text messages, here are some of the most common questions we get. Of course, you can always ask our community or contact our developer support for any questions you might have.
How can I get SMS API?
What is RingCentral SMS API?
Does RingCentral support MMS?
What’s the difference between P2P and A2P SMS?
P2P, otherwise referred to as person-to-person or peer-to-peer SMS is messaging that mimics human behavior and adheres to the CTIA guidelines of a maximum of:
- 15-60 SMS messages per minute
- 1,000 SMS messages per day
- 1 unique phone number per sender
- 100 recipients per message
- 1:1 ratio for sending and receiving SMS
- 25 repetitive messages
If you need to send messages at a faster rate, need to send to more numbers, or need to send more messages or you do not have a 1:1 send/receive ratio, you should evaluate using our High Volume SMS solution.
When should I use High Volume (A2P) SMS instead of P2P SMS?
High Volume SMS should be used when you want to use your existing toll-free number to send SMS messages, you need to send repetitive messages, your recipients will not be replying to your messages, or you need to send more than 200 messages from a number per day. Unlike traditional SMS, High Volume SMS will not be blocked by carriers if you exceed any of the following CTIA guidelines:
- 15-60 SMS messages per minute
- 1,000 SMS messages per day
- 1 unique phone number per sender
- 100 recipients per message
- 1:1 ratio for sending and receiving SMS
- 25 repetitive messages
What is the difference between long code and toll-free numbers?
Long code numbers in general provide better support internationally, and can be localized for specific regions, where-as toll-free numbers can be utilized to match your company branding or primary phone number. Toll-free numbers must be SMS enabled and are billed per message, whereas long-code numbers automatically include SMS and are included for low-volume use with your Office plan.
When using standard long code numbers, you are also able to send MMS messages with images, text, video, and more. Both long code and short code numbers are limited to 40 messages/ minute when using our Standard (Low-Volume SMS) API.
For High Volume SMS enabled long code numbers, you are able to send commercial, repetitive, or bulk SMS at a rate of 1 message per second, but lose some of the above functionality (please see limitations of High Volume SMS). With toll-free SMS using our High Volume SMS API, you can send up to 3 messages per second.
What is the maximum number of SMS messages I can send per minute?
When using low-volume or P2P SMS, you are limited to sending a maximum of 40 messages per minute per RingCentral number.
To messages more quickly (up to 1 message per second for commercial long code and up to 3 messages per second for toll-free numbers) please contact developer support to have your RingCentral number enabled, and utilize our High Volume SMS documentation.
Please note fees apply for international, toll-free, and High Volume SMS.
How do I enable and use High Volume SMS?
To request high-volume SMS capabilities for your long code or toll-free number, please contact our Support team.
While you are talking to our support team, be sure to ask them about your daily spending limits to ensure that you have a large enough limit to meet your high-volume SMS needs.
Be sure to also utilize our High Volume SMS API to take advantage of faster sending rates, batch transactions, and queuing. You can find our High Volume SMS API documentation here.
What are the limitations of High Volume SMS?
Once High Volume SMS is enabled, SMS for the enabled number will no longer be able to be sent or received within the RingCentral App. This is to prevent overloading your app with thousands to millions of sent messages and replies that can happen with High Volume SMS. You can still access sent messages and responses using the High Volume SMS Message Store API.
For more limitations, including limitations on group messages and MMS, please see our Developer Documentation.
Do you charge carrier fees on top of your list prices?
Unlike many providers, we do not charge additional carrier fees on top of the price to send High Volume SMS messages. This means that the price you see is the price you pay per message - saving you up to 50% on every message sent and received!
Note, a message is defined by the carrier, as such concatenated messages or longer messages sent through the API may be charged as multiple messages based on length. International SMS, or other types of paid SMS are excluded from our High Volume SMS flat fee and will be billed accordingly.
Where can I find the High Volume SMS app?
The High Volume SMS app is available in our App Gallery, and allows anyone on your team with a High Volume SMS enabled number to log in using their RingCentral credentials and send mass SMS either by copying and pasting numbers or uploading a CSV.
Learn more about our High Volume SMS App here.
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