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ak avatar image
ak asked ·

SMS FAQ

The Send SMS API allows you to send SMS from the RC number that you have logged in as. Here are the typical scenarios for from and to numbers.


"From Numbers

Case 1: Main Extension number

When you are logged in as the Main Extension Number ( Ext 101 ) the message would be sent from Ext 101 to the to number


Case 2: Other Extensions

When you have an extension with both a Digital Line and a Direct number and you are logged in using either of them. A message would be sent from the number that you use as the From number ( digital / direct )


To Numbers

The To numbers could be either:

  • PSTN
  • RC Number ( Main Number / Extension /  )


Text Message size restrictions:

We support up to 1000 characters for the text message.


Short Codes:

Currently we do not support Short Codes for the extension numbers. 

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anton-nikitin answered ·
We will support up to 1000 characters in both inbound and outbound SMS by the end of Aug.
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chris-patterson answered ·
Great, thank you for all of the answers!

Can we receive messages and, if so, how can we receive messages via the API? For example, we would like to receive texts in and have our software pick those up. Maybe via a web hook or something similar? Any information is appreciated.
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You can indeed receive messages and retrieve them through the RingCentral API.

Please see for more detailed information the Sending SMS Dev Guide.

Messaging between RingCentral extensions is referred to as paging in our API Reference 
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These links are dead, can these be updated?
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Thanks Antonio. We have fixed the links.
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dheighton avatar image
dheighton answered ·
Is there a way for an extension to be given permission to text from another extension's number? For instance we would like to send text's out to clients as if from an individual sales person, but without the sales people having to go through any sort of flow. (This would be automated, like emails).

Not seeing a clear cut way to do that without having all of my sales people having to go through an oauth workflow to give permission?
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We are looking to do the same thing

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vb avatar image
vb answered ·
No. There is no way that you would be able to send a text from another extension without authorizing as that extension(privacy issue)
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As a follow up to that, how can I send a text out from the main company number on the account? I am authorizing and logging in from the primary admin account, but I can't send from our main company number.
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You cannot send SMS from the main company number instead you could send from any of the numbers which is attached to an extension.

Lets say the authorized extension  has multiple digital lines associated. You could use any of the digital lines to send SMS
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You can send text out from the main company number when authorized as the Operator Extension.

By default the Operator Extension is extension 101, however, this can be configured to point to other extensions in the Online Account Portal Admin's Auto-Attendant's Operator Extension configuration panel.

You can see more information on assigning the Operator Extension in our Knowledgebase here:

http://help.ringcentral.com/articles/RC_Knowledge_Article/Assigning-the-Operator-Extension-on-an-Onl...
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As a follow-up, it is also possible to both send SMS from the main company number and have multiple users respond to the main company number. To do this, configure your users using a Call Queue and then have the Operator Extension configured point to the Call Queue. To send SMS as the main company number, set the password for the Call Queue extension and use that extension to authorize the SMS app.
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derm-derm answered ·
I have created a number under the extension I connect to with the API for sending SMS messages. The messages seem to be sent (I get response 200) but in testing sending to my cellphone I never get the messages. This worked in the sandbox but it isn't working in production.
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ak avatar image
ak answered ·
Could you open a case with our Developer Support team addressing the issue:
https://developer.ringcentral.com/support.html


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Anirban Sen Chowdhary avatar image
Anirban Sen Chowdhary answered ·

Based on Chris's question "Can we receive messages and, if so, how can we receive messages via the API? "

Yes, the sms content can be captured with the API /restapi/v1.0/account/~/extension/~/message-store/<message id>/content/<attachment id>

All you need to do is to provide the exact message id and the attachment id related to the message

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