I am currently running 3CX in 3CX's provided cloud, and when I try to create a SIP Trunk, Amazon Chime Voice Connector is not listed. Does anyone have a solution?
Indeed Amazon Chime is not supported for the Hosted by 3CX environment as no IP based providers are because of limitations of IP based providers. If you need to use Amazon Chime then you can host 3CX in your own instance. https://www.3cx.com/ordering/pricing/hosted-info/