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Outbound — Contact Lists & DNC

Topic Detail
Navigation Admin → Outbound → Contact Lists and Admin → Outbound → DNC Lists
Purpose Manage the lists of contacts to dial and the numbers that must never be dialed
Max contacts per org 5,000,000
Max contacts per list 1,000,000
Max DNC records per list 1,000,000
Max DNC records per org 2,000,000

✅ Verified against Genesys Cloud Resource Center — March 2026

Contact Lists

A contact list is the "phone book" for a campaign — it contains the names, phone numbers, and custom data fields for every person the campaign will attempt to reach.

Contact List Structure

Field Detail
Columns Up to 50 columns per list
Phone number columns Up to 10 phone number columns per list (e.g., mobile, home, work)
Column header character limit 128 characters
Column entry character limit 512 characters
Phone number format Minimum 10 digits, E.164 format required
One campaign at a time A contact list can only be on one running campaign at a time

Creating a Contact List

  1. Navigate to Admin → Outbound → Contact Lists
  2. Click Create
  3. Name the contact list
  4. Define columns — at minimum one phone number column
  5. Select the phone number column type for each phone column
  6. Click Save

Importing Contacts

  1. Open the contact list
  2. Click Import
  3. Upload a CSV file — columns must match the list definition
  4. The system validates and imports contacts

💡 Contact lists can be generated from CRM or marketing systems and uploaded on a one-time, recurring, or trigger-based basis.

Contact List Filters

Contact list filters allow you to run a campaign against a subset of a contact list without creating a separate list:

  • Filter by any column value (e.g., only contacts in a specific state or with a specific status)
  • Assigned to a campaign in the Campaign Editor
  • Up to 1,000 contact list filters per org

Attempt Controls

Attempt controls limit how many times a contact or phone number can be called, preventing excessive re-dialing.

Setting Description
Max attempts per phone number Stop calling a specific number after N attempts
Max attempts per contact Stop calling the entire contact record after N total attempts
Recall time How long to wait before retrying a contact
Reset period After this period, the attempt counter resets (e.g., every 24 hours)
Phone type-specific limits February 2026 update — configure different attempt limits per phone type (mobile, home, work)

💡 February 2026 update: Administrators can now set phone type-specific attempt limits, extend recall times, and adjust reset periods with greater precision.

DNC Lists (Do Not Call)

A DNC list is a data source of phone numbers that must never be dialed by any campaign. The system checks contact phone numbers against all assigned DNC lists before placing each call.

Types of DNC

Type Description
Internal DNC Organization's own DNC list — uploaded and managed in Genesys Cloud
Campaign-specific DNC Assigned to specific campaigns only
Wrap-up triggered DNC Agent selects a wrap-up code that automatically adds a number to DNC
Contact-level DNC Agent or system flags an entire contact (not just a number) as uncallable

Creating a DNC List

  1. Navigate to Admin → Outbound → DNC Lists
  2. Click Create
  3. Name the DNC list
  4. Click Save

Importing DNC Numbers

  1. Open the DNC list
  2. Click Import
  3. Upload a CSV of phone numbers
  4. The system validates and imports

Assigning DNC to a Campaign

DNC lists are assigned in the Campaign Editor during campaign configuration. A campaign can have multiple DNC lists assigned — all are checked before each dial attempt.

Agent-Triggered DNC

To allow agents to add numbers to DNC during a call:

  • Configure a wrap-up code mapped to the DNC action
  • Or include a DNC button in the agent Script
  • The number is immediately flagged and will not be dialed again

Callable Time Sets

Callable time sets define when a campaign is allowed to dial for each time zone. This works alongside ATZM to ensure compliance with regulations like the Telephone Consumer Protection Act (TCPA).

Feature Description
Navigation Admin → Outbound → Callable Time Sets
Purpose Define allowed dialing hours by day of week and time zone
Integration Assigned to a campaign — overrides or supplements ATZM defaults
Override Callable times can be overridden; callable days cannot

Contact Management During a Campaign

Action Description
Dynamic queueing Contacts are re-sorted at attempt time — most current data is used
Filter changes honored If a contact list filter changes during a running campaign, the campaign honors the update
Skip time zone contacts Contacts outside the callable window are skipped and optionally rescheduled via ATZM
Mark uncallable A wrap-up code or call rule can flag a number or entire contact as permanently uncallable

Interview Cheat Sheet

Question Answer
Max contacts per org? 5,000,000
Max contacts per contact list? 1,000,000
Max DNC records per list? 1,000,000
Max DNC records per org? 2,000,000
Max phone number columns per contact list? 10
Can a contact list be on multiple running campaigns? No — only one running campaign at a time
What format must phone numbers use? E.164 format, minimum 10 digits
What is an Attempt Control? Limits on how many times a contact or number can be dialed
What does a DNC list do? Prevents listed numbers from being dialed by any campaign it is assigned to
How can agents add a number to DNC? Via wrap-up code mapped to DNC action, or DNC button in agent script
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