We're seeing a 500 response in Test Chat (for a voice agent), when trying to trigger any custom tool call. Is this an expected/known issue on Retell? https://cdn.discordapp.com/attachments/1452393774650097776/1452393775023259822/Screenshot_2025-12-21_at_3.12.50_PM.png?ex=6949a69c&is=6948551c&hm=e2acc568ce1871ba03f151d39fd1e4bd1f0e22b3a8d7e25afae9ecdccb36f37b&

what model are you using?

Hey there, I'm using Gemini 3.0 Flash

Same problem here. Gemini transfer calls not working

Hello @sim_sima_ , can you create a separate ticket ?

moved