WhatsApp Cloud Calling API Integration

I'm seeking an experienced developer to set up the WhatsApp Cloud Calling API on one of my WhatsApp Business API numbers. This integration must be direct with Meta and not through any third-party provider. The calls should be routed to my SIP trunk.

Key Requirements:
- Direct integration with Meta's WhatsApp Cloud Calling API
- Route calls to my SIP trunk
- No third-party providers involved

Ideal Skills and Experience:
- Proven experience with WhatsApp Business API and Cloud Calling
- Understanding of SIP trunk configurations - can help if required once the calls land to the SIP trunk
- Familiarity with Meta's API integrations
- Ability to handle direct API setups without third-party intervention

Please ensure you have the relevant experience before bidding. Looking forward to your proposals!