Twilio Accounts

General Bytes offers the Twilio API to send SMS codes to you & your customers. The charges per SMS vary across regions.

NOTE: The major phone carriers around the globe impose limits upon the frequency of SMS transmission. They do this to prevent SMS spam & to provide a consistent service. The carriers use equipment that has limitations; there’s no getting around this. When these limits are exceeded, the carrier will “filter” out the excess SMS traffic, and those messages will simply be discarded: lost. You’ll commonly see these filtering events occur in batches.

GENERAL BYTES no longer offers Twilio (or Nexmo) via the GB API (paid service).

You must signup for (and deploy in your CAS settings) your own Twilio (or Nexmo) account.

Navigate to Twilio at: https://www.twilio.com/

Create your Twilio account.

NOTE: The use case for SMS messaging within CAS is for Identity Verification and Opt-in Notifications.

Crypto-related solicitations are forbidden, as is any other “high-risk” financial spam.
Twilio will reject you (or close your account) if you use their service for such messaging.
US/Canada guidelines: https://support.twilio.com/hc/en-us/articles/360045004974-Forbidden-Message-Categories-for-SMS-and-MMS-in-the-US-and-Canada

Provide a valid email & phone number, and the following options:

Locate your keys:

Both the “ACCOUNT SID” and “AUTH TOKEN” are required.

Buy a phone number.

In this example, the cost is only $1/month.
Make sure it is SMS & Voice capable (MMS, Fax not required).

Assemble the required parameters:

Using a colon “:” between all 3 parameters, place them in this specific order:

SID:TOKEN:PHONE

For this example, it would look something like:

ACc1ef9a43c47020ee0c4a0a5980dc839b:8a1d4ae90d81306e0208eec086f:+18558101002

Copy & paste the entire parameter string in one paste operation.
- CAS fields doesn’t append previous entries.

Navigate to CAS: Organization: SMS Provider

Uncheck the “Use GB API Key” option, and enter the parameters from the previous step:

Save it.

Return to the setting, and test it.

If everything went as planned, you should see:

Special thanks to Phil Sigler for doing some of this legwork!