I want to make a call on a company extension number using webrtc
for example- this is a phone number 9544642902 and 4063 is the extension number
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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