diff --git a/lib/call-session.js b/lib/call-session.js
index 974dcc4..474a79c 100644
--- a/lib/call-session.js
+++ b/lib/call-session.js
@@ -304,7 +304,7 @@ class CallSession extends Emitter {
             sdp
           };
           const startAt = process.hrtime();
-          const response = await this.answer(opts);
+          const response = await this.answer({direction: ['private', 'public'], ...opts});
           this.logger.debug({response, opts}, 'response from rtpengine to answer');
           const rtt = roundTripTime(startAt);
           this.stats.histogram('app.rtpengine.response_time', rtt, [