Register Phone Numbers for WhatsApp

Message customers2 min readUpdated 2026-03-12

Register Phone Numbers for WhatsApp

Add additional phone numbers to your WhatsApp Business account through JustCall for multi-team or multi-location messaging.


Requirements

  • The phone number must not be currently registered with any WhatsApp account (personal or business).
  • The number must be able to receive SMS or voice calls for verification.
  • You need a verified Meta Business account.

How to Register

  1. Go to ChannelsWhatsApp in JustCall.
  2. Click Add Number.
  3. Select a JustCall number that isn't already connected to WhatsApp.
  4. Complete the verification (SMS or voice call).
  5. The number appears in your WhatsApp channel list.

Multi-Number Setup

  • Each registered number has its own conversation inbox.
  • Agents can be assigned to specific WhatsApp numbers.
  • Templates are shared across all numbers on the same WhatsApp Business Account.
  • Quality ratings are tracked per number — a low-quality number doesn't affect your other numbers.

Removing a Number

To disconnect a number from WhatsApp:

  1. Go to ChannelsWhatsApp.
  2. Select the number.
  3. Click Disconnect.

The number becomes available for SMS again but loses its WhatsApp conversation history.


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