By html link is the away to open the glip desktop app for a call. You can do this with "callto:" on RC phone app, but it does not work for glip....
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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Hi, my app passed the application process for production but the credeantials are not accepted although the sandbox credentilas were accepted. The name of my app Sandy RingCentral. I opened a ticket but still waiting