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I check your numbers and found that they are not provisioned for HV SMS. You can double check using the API to read the number features.

public void read_extension_phone_number() throws RestException, IOException{
      var resp =  restClient.restapi().account().extension().phonenumber().get();
      for (var record : resp.records) {
            for(var feature : record.features)
            {
              if (feature.equalsIgnoreCase("A2PSmsSender"))
              {
                // this number is a HV SMS number.
              }
            }
        }
    }

Then you have to send a request for HV SMS provisioning. Make sure that your TCR registration is for HV SMS as I wrote earlier.

That is correct. I used this code and could not found the A2PSmsSender feature. Im submitting the form now. If i need 2 number, that mean i have to submit 2 time?

I have a question please correct me if im wrong:

- TCR form is for all carrier out there not blocking us when sending a lot of SMS out and the from in this link is the way to enable A2PSmsSender feature? Because i have a notification that our TCR form has been approved but my 2 phone number could not send HV SMS yet.

Sorry for the delay response.

TCR for standard SMS is different from TCR for HV SMS. If I remember correctly, the TCR for HV SMS would cover also standard SMS but not the other way around.

And beside the TCR, your account must have a campaign id too. The campaign id is required by all mobile carriers to make sure messages sent from your account would match with the criteria and specifics you provided in the campaign id request.

Thanks a lot for your detail information but i just received 1 more bad new that RC is now suspended process to request a new HV SMS. That mean our 2 numbers could not able to be A2P sender? Is that correct?

From where or whom did you get the news that RingCentral suspends HV SMS request process?

I received the confirmation email from the address "devsupport@ringcentral.com". They said that the HV SMS is now discontinued and asked us to use https://sms-campaigns.com/ but we need the HV SMS via APIs instead of that website. Im not sure what should we do now. (I can fw you the email if needed)

Yes, please. And let's communicate via email or if you want to chat directly with me. DM me from your RC app.

Thank you a lot but seem i could not find your email or phone number via this forum. Can you just email me via the email khai@? (You can hide my email after done)

I see you joined this team "SMS-Campaigns App Support" a while ago. You can just click on my profile in the team and direct message me. I will be OoO in the next 2 days so next Monday would be good to get back to this.

Thanks a lot. Im really appreciated

Thanks for your response. We did submited 2 time for 2 number as bellow:

+16573346195 & +14088774000

The problem is that we are using JAVA JDK to send out the text but alway got the error

"errorCode":"CMN-101","message":"Parameter [from] value is invalid.

Im checked out and 2 above number don't have the feature "A2PSmsSender" we contact dev team but there are no update from the team.

Can you please help me to check it out?

I am checking with the team to see the status your requests. Meanwhile, have you got the TCR approval yet? That process normally takes up to 1-2 weeks during this time. And the HV SMS number provision can only happen after the TCR campaign is approved for your account.

They found that the TCR you submitted before went to the standard SMS. Unfortunately, there is no clear instruction in the form to notify if a request is for standard SMS or HV SMS so it goes to the default.

They ask now if you resubmit the TCR form and name the .pdf as follows, then they will reprocess the TCR registration before they can provision the HV SMS numbers.

RingCentral_TCR_<Your Company Name>_HVSMS.pdf

Thanks a lot for your response.

I'm in the form to submit the TCR form but i can't find where to upload the PDF file or what information for the RingCentral_TCR_<Your Company Name>_HVSMS.pdf

Did you mean i send the email to the team? Do we have any template so i can check it out?

I just submitted 2 other request as above. Please correct me if im do anything wrong.

I think it is the form for provisioning number and you have done that. For the TCR submission, check the instructions here and make sure you submit the right form with the name I mentioned above.

Thank you a lot. We are submitting this form now