We're customising the first message with dynamic fields and we have it set up for User to speak first to allow them to say hello without interruption, however when a user calls back after a missed call this does not flow well at all. The AI answers phone and is silent, and then when they speak in the first message there's a blank left in the script of where the dynamic field would populate. Is there a way around this? CALL ID: f82d00ed-51ef-4058-bd40-2c57fd7da622

Always send assistantOverrides.variableValues via the call PATCH API before the assistant speaks otherwise, simplify the first message to not rely on dynamic placeholders..