If you want to implement your own Web phone, use this library and the instructions in the repo.

If you want to use the RC embeddable, explain in details what and how you implement and what was the issue. Saying "but can't call that." does not help anyone helping you.

In HTML file i put https://github.com/ringcentral/ringcentral-embeddable embedded code which shown ringcentral dialer after sing in developer account.

I can i check with call send/receive in that dialer popup? Is there any specific number for call?

I try with ring-out PHP API https://developers.ringcentral.com/guide/voice/quick-start#php which status shown as "InProgress" but not receive any call.

https://github.com/ringcentral/ringcentral-web-phone library is based on node and also check https://github.com/ringcentral/ringcentral-js library which is not run direct on browser