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DNC (Do Not Call) Configuration & Handling Guide

1. Introduction

The DNC (Do Not Call) feature is used to restrict communication with leads based on their preferences.
This helps respect customer preferences, ensure compliance, and avoid unwanted communication.

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2. DNC Types

2.1 Phone Number Level DNC

Description:
If a phone number is marked as DNC, the system blocks all campaign attempts to that number.

Behavior:

  • No calls will be made to that number
  • Applies to all campaigns
  • Applies to all campaign types

Example:
Phone Number: +94 77 123 4567 → Marked as DNC
Result: No calls from any campaign, number is completely restricted

2.2 Channel-Based DNC

Description:
DNC can be applied for specific communication channels.

Supported Channels:

  • Voice
  • SMS
  • Email
  • WhatsApp

Behavior:

  • Only restricted channel is blocked
  • Other channels remain active

Example:
Lead preference: Voice → Blocked, SMS → Allowed
Result: No voice calls, SMS can still be sent

2.3 Promotional vs Transactional DNC

Description:
Leads can restrict promotional messages while allowing important transactional communication.

Behavior:

  • Promotional content → Blocked
  • Transactional content → Allowed

Example:
Promotional: “Get 20% discount” → Blocked
Transactional: “Your OTP is 1234” → Allowed

3. DNC in Campaign Execution

Campaign-Level Setting

During campaign setup, an option is available to enable DNC filtering.

Behavior When Enabled

  • System checks DNC before dialing
  • DNC numbers are not dialed

Lead Status Update

  • DNC leads are automatically updated with DNC status

Result

  • DNC leads are skipped
  • Only valid leads are processed

4. Combined DNC Behavior

System applies all DNC rules together:

  • Phone-level restriction
  • Channel-level restriction
  • Promotional/Transactional preference

Example:
Lead settings: Phone marked as DNC, SMS allowed, Promotional blocked

Final Result:

  • No calls
  • SMS allowed
  • Promotional SMS blocked
  • Transactional SMS allowed