Short Message Service (SMS) allows you to set the daily and monthly warning thresholds and suspend thresholds. If the warning thresholds are reached, the specified contacts receive text messages from SMS. If the suspend thresholds are reached, SMS stops sending text messages. These settings help limit the financial losses that may happen as a result of cyberattacks. These attacks hijack the service to send large numbers of text messages, resulting in high costs.

Background information

By default, the maximum number of text messages that you can send per day or month is unlimited. We recommend that you evaluate your business needs before you set a threshold for the number of text messages sent per day or month. If the number of sent text messages reaches the suspend thresholds, SMS stops sending text messages. If the threshold is set too low, your business may be affected. If the number of sent text messages reaches the warning thresholds, SMS sends you a notification message. We recommend that you check the details immediately after you receive the message.

Limits

Take note of the following limits when you configure the warning settings:
  • SMS sends up to 20 threshold warning messages per day.
  • If you want to send more text messages, you must modify the threshold settings.

Procedure

  1. Log on to the SMS console.
  2. In the left-side navigation pane, choose System Setting > General Setting.
  3. On the Warning Setting tab, click Setting in the Delivery Volume Threshold section.
  4. Set the delivery volume threshold.
    1. Enter the daily and monthly warning thresholds and suspend thresholds. If the warning thresholds are reached, SMS sends notification messages to the specified contacts. If the suspend thresholds are reached, SMS stops sending text messages.

      If you do not need to limit the delivery volume, leave the fields blank.

    2. Click Save.
  5. Optional. Set the package balance alert.
    If the package balance is lower than the threshold, SMS sends a notification message to the specified contacts. The value range of the package balance threshold is 0 to 2,000,000,000.
    1. Click Setting and enter the threshold.
    2. Click Save to save your settings.