I wonder if we couldn't have a `sendTo` method here, so we could factorize the code even further; so instead of having:

```js
if (this.has(answerMsg.peer))
  this.get(answerMsg.peer).send('talkilla.call-establishment', answerMsg);
```

We could have:

```js
this.sendTo(answerMsg.peer, 'talkilla.call-establishment', answerMsg);
```

`sendTo` impl. would basically just be:

```js
sendTo: function(to, topic, data) {
  if (this.has(to))
    this.get(to).send(topic, data);
}
```

What do you think?