Show per-minute call rate when initiating call from Chat interface
When you initiate a call by clicking the phone button in the upper right corner of a chat box on the mobile app, it does not show the per-minute calling cost. The call immediately initiates. This is a problem because the calling rates aren't shown anywhere in the chat interface. In fact, when there is a rate shown at the bottom of the chat interface (next to the text "to [number] via Skype"), for example for an international number, it misleads you into thinking the call cost is the chat rate. It's entirely misleading. And can lead to extremely expensive, unintended calls. This can be resolved if pressing the call button in the upper right shows the calling rates, rather than initiating the call immediately.