the author of this app says:
azRemote lets you control all the functionalities of your satellite/tv/cable set-top-box from your iOS device. azRemote is compatible with the AZBox series set-top-boxes. Using azRemote is as simple as configuring the IP address of your set-top-box into the settings of azRemote. azRemote uses the WiFi connection of your set-top-box to command it, so you will be able to control your set-top-box
from any place in your WiFi coverage range.
What's New in version 1.3
Fixes network problem with iOS 5
- Requires iOS 4.3 or later.