Getting SMS in javascript with js sdk

Yes there is javascript SDK which you can use in getting incoming SMS messages.

You can do it with combination of API and JavaScript SDK. There is RingCentral APIs which retrieve SMS from message store. To retrieve the new SMS message, you need to call the message-store endpoint .

Similar question is answered here:

https://forums.developers.ringcentral.com/questions/220/can-you-use-javascript-sdk-to-read-incoming-sms-me.html

We had the same requirement, we use the API call to retrieve the new SMS message, calling the message-store endpoint via the API. We then integrated these with our web platform.

We used "dateFrom" and "dateTo" filter of the API to filter the message

ref: https://developers.ringcentral.com/api-reference/Message-Store/listMessages

This quick start provides you with ready codes in several programming languages to read the message store.