SMS via hologram.apiary-mock.com

Everything works fine if I send an SMS via the dashboard.
I.E. It’s nicely buffered until “hologram receive --sms” picks it up.

But if I try to send using cURL for example via
https://private-anon-d241b9dbdd-hologram.apiary-mock.com/api/1/sms/incoming
the returned result is { “success”: true} but my modem is not getting the message.

From the docs (I changed deviceid to mine):

    curl --include \
         --request POST \
         --header "Content-Type: application/json" \
         --data-binary "{
      \"deviceid\": 1234,
      \"fromnumber\": \"+1-312-555-1212\",
      \"body\": \"Hello world\"
    }" \
    'https://private-anon-d241b9dbdd-hologram.apiary-mock.com/api/1/sms/incoming'

HTTP/1.1 200 OK
Server: Cowboy
Connection: keep-alive
X-Apiary-Ratelimit-Limit: 120
X-Apiary-Ratelimit-Remaining: 119
Content-Type: application/json
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: OPTIONS,GET,HEAD,POST,PUT,DELETE,TRACE,CONNECT
Access-Control-Max-Age: 10
X-Apiary-Transaction-Id: 59f4d77b4a24630700aa7e6f
Content-Length: 21
Date: Sat, 28 Oct 2017 19:16:11 GMT
Via: 1.1 vegur

{
“success”: true
}

Partially answer my own question. I don’t know why I got a success.
However, I found this different docs with a different url and this works.

curl --verbose --request POST \
--header "Content-Type: application/json" \
--data '{"deviceid": 012345, "body": "Hello device"}' \
'https://dashboard.hologram.io/api/1/sms/incoming?apikey=dskfjglajoke'