diff --git a/src/components/views/voip/CallView.tsx b/src/components/views/voip/CallView.tsx
index 14025ce3f0..481d7b303c 100644
--- a/src/components/views/voip/CallView.tsx
+++ b/src/components/views/voip/CallView.tsx
@@ -534,7 +534,7 @@ export default class CallView extends React.Component<IProps, IState> {
             );
         }
         let dialpadButton;
-        if (this.state.callState === CallState.Connected && CallHandler.sharedInstance().getSupportsPstnProtocol()) {
+        if (this.state.callState === CallState.Connected && this.props.call.opponentSupportsDTMF()) {
             dialpadButton = (
                 <ContextMenuButton
                     className="mx_CallView_callControls_button mx_CallView_callControls_dialpad"