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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