WhatsApp - Twilio Integration Assistance

I am seeking assistance to finalize my integration between WhatsApp and Twilio. Currently, I have achieved the following functionalities in the Twilio Console, as observed in the logs:

• Configured a Twilio mobile number.
• Successfully sent text messages to the Twilio number.
• Set up Twilio to send automated reply text messages to the originating number.
• Sent a WhatsApp message to the Twilio number, with successful log records.

However, there are certain issues that need resolution:

1. WhatsApp OTP Verification:
• Unable to set up WhatsApp on my iPhone due to non-receipt of the OTP from WhatsApp in Twilio for number verification.
• Received the message on my iPhone: "WhatsApp is temporarily unavailable. Please try again in 1 hour."
• I am unsure if this a WhatsApp or Twilio problem.

The goal is to achieve the following functionalities within the WhatsApp application:

• Send and Receive WhatsApp Messages: Enable bidirectional communication for WhatsApp messages.
• Text Messages Integration: Facilitate sending and receiving text messages within WhatsApp.
• Voice Calls Integration: Enable the sending and receiving of voice calls via WhatsApp.

The ideal outcome is to have a seamless integration where WhatsApp serves as the central application for:

- Sending and receiving WhatsApp messages.
- Handling text messages within the WhatsApp interface.
- Managing voice calls through the WhatsApp platform.

I am looking for a freelancer who can troubleshoot the WhatsApp OTP issue, ensuring successful integration and functionality across the specified features.