I didn’t buy it as the kit but have used the I/OLinc and one section of the ELK-930. For door bell detection.
When the bell is ringing the I/OLinc will send an On to what ever is linked to it and an Off when the bell stops ringing. I also added an X10 address to mine and it sounded an X10 Chime Module.
So depending on how long the bell is rung. You will get a short On then Off Insteon command.
Anything like a On Off Flashing would probably have to be done with a controller.