ERSP Sync appointment invites to Android/iPhone Calendar
From CompanionLink Support
To add an meeting invite (.ics file) to DejaOffice, open the email using your mobile devices email app then tap on the .ics file. Next select DejaOffice as the destination and tap Okay to add the invite to your DejaOffice Calendar.
You can also pick up the appointment on your PC. Once it shows on the PC you can let it synchronize using CompanionLink to DejaOffice.