ISPBox Wiki

Sending SMS with Twilio

Published Jul 11, 2026 · Updated Jul 11, 2026 · 2 min read

Connect Twilio so ISPBox can text customers and staff: entering your Account SID and auth token, choosing a from-number or messaging service, sending a test, and where SMS is used.

Twilio SMS credential fields: Account SID, Auth token, From number, Messaging service SID and an Enable SMS sending toggle

Connect a Twilio account and ISPBox can send text messages - outage alerts to affected customers, mass messages, and network alerts to your team. It is a one-time credential setup under Settings. SMS sending is currently marked beta.

1. Enter your Twilio credentials

Go to Settings > SMS and fill in the values from your Twilio console:

  • Account SID - your Twilio account identifier (starts with AC).
  • Auth token - your Twilio auth token. It is stored securely; once saved the field shows "Token saved" and you only re-enter it to replace it.

2. Choose where messages send from

You need one of two senders:

  • From number - a Twilio number in E.164 format (e.g. +15551234567).
  • Messaging service SID - optional; use this instead if you route through a Twilio Messaging Service (starts with MG). Leave the From number empty when you use one.

Then tick Enable SMS sending and save.

3. Send a test

Save your settings first, then use Send a test SMS - enter your own phone number and send yourself a message to confirm delivery end to end. If a send fails, the page surfaces the last error so you can see what Twilio reported.

4. Where SMS is used

Once enabled, SMS backs several features:

  • Network incident notifications - texting affected customers when an outage opens or resolves.
  • Mass messaging - reaching a filtered or hand-picked set of clients by SMS.
  • Alert rules - sending went-offline / went-online alerts to your team.

Each of those features chooses SMS as a channel; this page is the shared Twilio connection they all use.