OTRS 5, iPhone Shortcut
As you may know, in OTRS version 5 they have done away with the iPhone handle and mobile app but the new mobile UI is pretty nice.
I thought I would post this here in case it helps someone that doesn't want Agents or Customers to have to navigate around a browser to open the login pages.
Open up Safari on iPhone or iPad and load the web site, https://your.host.domain/otrs/index.pl
If you want a shortcut to customer portal then URL is https://your.host.domain/otrs/customer.pl
At the bottom of the screen you'll see the "Send To" button, an icon depicting an arrow that looks like it's trying to get away from a square.
You should have a few options. Select "Add to Home Screen".
You'll be asked to choose a name for the homescreen icon.
When you're done it'll show up on your homescreen. You may then move it to your desired location on the device home screen.