bugfix: was incorrectly making additional attempts after caller hung up or other failures on first attempt

lib/call-session.js

@@ -431,6 +431,7 @@ class CallSession extends Emitter {
                 sip_status: status
               }).catch((err) => this.logger.error({err}, 'Error writing cdr for call failure'));
             }
+            return;
           }
           else {
             this.logger.info(`got ${err.status}, cranking back to next destination`);