openclaw voicecall status --call-id <id>
openclaw voicecall call --to "+15555550123" --message "Hello" --mode notify
openclaw voicecall continue --call-id <id> --message "Any questions?"
openclaw voicecall end --call-id <id>

openclaw voicecall expose --mode serve
openclaw voicecall expose --mode funnel
openclaw voicecall expose --mode off