There will ultimately be 4 SIK models released. Currently two have been officially released, the Telephone Entry model, and the Cat5 Whole House Intercom model. One of the other 2 models will be one that uses a different board and will have the ability to have 2 way communication and camera viewing through an app interface. The final model will use a SIP module to integrate with automation platforms. The I-series will be the SIK version which integrates with an app and will be released during the 1st quarter of 2015.