Blocking a Single Fax Number in RightFax Using a Dialing Rule | Ingenium Support

Blocking a Single Outbound Fax Number in RightFax Using a Dialing Rule

Overview

Use a Dialing Rule to block one specific outbound fax number. This lightweight method is ideal when only a single destination must be denied, without maintaining a Destination Table. The rule pattern uses wildcards (~ and +) to match optional prefixes and trailing digits.

Applies to: RightFax 20.2, 22.2, 24.4
Tools: Enterprise Fax Manager (EFM) or Web Admin

Prerequisites

  • RightFax administrative access.
  • Knowledge of the exact dial string (including any 9, 1, or prefix digits used by your dialing plan).

Pattern Syntax

RightFax Dialing Rules support wildcard symbols to match number variations.

SymbolDescriptionExample
+Matches zero or more digits. Must appear at the end of the number string.415+ matches any number beginning with 415.
~Matches zero or more digits anywhere in the number string.~415+ matches 415, 1-415, or 9-1-415 prefixes.
?Matches exactly one digit.4155557??? matches any number between 415-555-7000 and 415-555-7999.

To block a specific number such as 503-555-1115, use this pattern:
~5035551115+

This pattern matches:

  • 5035551115
  • 15035551115
  • 915035551115
It accounts for one optional prefix digit (the tilde) and any trailing digits (the plus sign).

Steps — Enterprise Fax Manager (EFM)

  1. Open Enterprise Fax Manager.
  2. Go to Dialing Plan → Dialing Rules.
  3. Click Insert to create a new rule.
  4. On the Matching tab:
    • Set Pattern to ~5035551115+.
    • Add a description such as “Block outbound fax to 503-555-1115.”
  5. On the Other tab:
    • Set Action to Disallow sending.
  6. Click OK to save the rule.
  7. Move this rule above any routing rules so it takes priority.

Steps — Web Admin

  1. Open Web Admin → Servers → Dialing Rules.
  2. Select New to create a rule.
  3. In Matching pattern, enter ~5035551115+.
  4. Under Action, select Disallow sending.
  5. Optionally add a comment describing the blocked number.
  6. Save and apply the changes.

Testing

  1. In Enterprise Fax Manager, open Dialing Plan → Test Route.
  2. Enter 5035551115 or 15035551115.
  3. Verify that the result shows Blocked by dialing rule.

Notes

  • The ~ wildcard ensures the rule covers any proceeding digits.
  • The + wildcard ensures the rule covers any trailing digits.
  • For larger lists or ranges of numbers, use Destination Tables instead.
  • Dialing rules are applied in order; the first match wins.

References

  • RightFax Administrator Guide (20.2/22.2/24.4): Chapter “Creating Dialing Rules and Least-Cost Routing Plans,” section “Blocking Outbound Calls.”
  • RightFax Web Admin Administrator Guide (22.2/24.4): Chapter “Creating Dialing Rules and Testing Dialing Rules.”