I CAN HELP
Looks like you've got an AI agent, a SIP trunk, and a virtual number that all need to talk to each other but right now they're not playing nice.
This usually isn't a quick settings tweak. SIP trunks expect one type of connection, AI agents expect another, and the virtual number sits in the middle trying to translate. When that setup isn't dialed in, you get dropped calls, one-way audio, or nothing routing at all.
Let me know if you want me to take a look.