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Cote_Business Systems asked Phong Vu commented

Cannot send sms from main company number

I have a production app working and it can send outgoing sms messages form all my numbers properly, except from my main company number. I have search around the forum and found several references that state that you have to use the operator extension that is defined in your IVR - which I am doing. But i am still getting the "Phone number doesn't belong to extension" error message returned.

Is this a possible problem with Multilevel-IVR? or does anyone know of a possible other issue that I may be missing.

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Anirban answered Cote_Business Systems commented

"If you indicate a company number (not direct extension number) as your "from" number, you must be logged in as a company operator to be allowed to send SMS from this number. By default, main system administrator extension is defined as a company operator, but it can be changed in RingCentral Service Web UI . "

See the reference answer:

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Thanks Anirban, we already had found this reference, and we are logged in as our main company operator extension that is defined in our IVR settings. We have this changed from the default ext 0, to ext 222 AND we are using Multilevel-IVR, so I am not sure if either of these are causing an issue. But we are logging in as 222 and are able to authenticate and obtain incoming fax and sms messages for our main number, we just cannot send.

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Phong Vu answered Phong Vu commented

Check your IVR general setting to see which extension was selected to receives all calls and messages by default for the main company number. Login your app with that extension then you will be able to send SMS from the main company number.


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If the IVR general setting is set to a call queue, can members of that queue send SMS from the main number?

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No. The call queue needs to be setup with a call queue manager and the manager can send SMS from the call queue phone number.

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Developer sandbox tools

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:

  • On MacOS: press "fn + command + f2" keys
  • On Windows: press "Ctrl + F2" keys