Using ARS to restrict outgoing calls

Last Updated : Jun 30, 2016 |
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With ARS, you can block outgoing calls to specific dialed strings. For example, you can restrict users from making international calls to countries where you do not do business. In the US, you can restrict access to 900 and 976 pay-per-call numbers.
In this example, Colombia is used as the country to restrict. The country code for Colombia is 57.
To prevent callers from placing calls to countries that you want to restrict:
  1. Enter change ars analysis 011n, where 011 is the international access code and n is the country code of the restricted country.
    ADDITIONAL INFORMATION:
    In this example the country code of the restricted country is 57.
  2. Click Next if necessary until you see a blank field.
    ADDITIONAL INFORMATION:
    If the dialed string is already defined in your system, the system displays the cursor in the appropriate Dialed String column. Skip to Step 5 to deny calls to this dialed string.
  3. In the Dialed String column, type 011xx, where
    ADDITIONAL INFORMATION:
    In this example, type 01157.
  4. In the Total Min and the Total Max columns, type the minimum number of digits, and the maximum number of digits, that you want the system to analyze.
    ADDITIONAL INFORMATION:
    In this example, type 10 in the Total Min column, and 23 in the Total Min column. The system uses this digit analysis entry if the dialed number:
    • Begins with 01157.
    • Contains at lease 10 digits.
    • Contains no more than 23 digits.
  5. In the Route Pattern column, type an appropriate route pattern.
    ADDITIONAL INFORMATION:
    In this example, type deny to prevent users to complete calls to this dialed string.
  6. In the Call Type column, type the category of calls that this dialed string represents.
    ADDITIONAL INFORMATION:
    In this example, type intl to indicate this dialed string represents an international call.
  7. Select Enter to save your changes.
Related links
Modifying call routing