Exploring RC SDKs to get attachment content of messages in binary format from message store.
Any example in PHP available anywhere I can refer?
Have you checked the example here: (https://github.com/ringcentral/ringcentral-php/blob/master/demo/callRecording.php an example you can refer how to read the call log and download the call recording binary file to a local folders.
Using the RingCentral Phone for Desktop, you can dial or receive test calls, send and receive test SMS or Fax messages in your sandbox environment.
Download RingCentral Phone for Desktop:
Tip: switch to the "sandbox mode" before logging in the app:
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