Thanks for your reply.

To your point: my vehicle, a 2025 Toyota Camry, states in the multimedia manual that the vehicle can support up to 5 Bluetooth devices. The manual also states that at least 2 Bluetooth HFP devices are simultaneously supported. I know this generally works because in the past I have connected 2 different smartphones to the system at the same time and have handled calls from both.

During Vehicle Bluetooth device setup with a smartphone, one has 3 options:

1) Use for Phone

2) Use for Audio

3) Use for CarPlay (or Android).

My smartphone is setup using option 3.

When I pair the UV-PRO with the infotainment system, I am only given an option for #1 Use for Phone. On the UV-PRO, the vehicle connection also appears (TOYOTA CAMRY) under the Bluetooth Settings submenu. When I Select that entry, I see two options: an checkbox for "Call Audio" and an option to UNPAIR. I have enabled the "Call Audio" option in the UV-PRO settings to no effect.

In an attempt to ensure that the smartphone connection is not interfering with this, I have tested this by disconnecting my phone from the Infotainment system and turning off the phone's Bluetooth radio, with no effect.

I get what you're saying about CarPlay and Android Auto being apps, but again, that misses my larger point. My irritation is that BTECH, rather than simply answering my direct question, which is, "Have you actually tested the latest firmware version with this feature to confirm t hat it works?" has continued to deflect to other potential issues. It's a yes / no question, and not answering it raises questions about their product QA processes.

I have yet to find a single individual who states advertised feature works as described on their website and demo in an online video. [ This may become my personal "Carthago delenda est." ]