bugfix for #15: dialMusic not played on A leg when direction is outbound

lib/tasks/dial.js

@@ -123,6 +123,9 @@ class TaskDial extends Task {
       }
       else {
         this.epOther = cs.ep;
+        if (this.dialMusic && this.epOther && this.epOther.connected) {
+          this.epOther.play(this.dialMusic).catch((err) => {});
+        }
       }
       this._installDtmfDetection(cs, this.epOther, this.parentDtmfCollector);
       await this._attemptCalls(cs);