Some PBXs have only RS232 interface for SMDRs. As TRVR no longer has support for serial port SMDR interfaces, customers will need to purchase an RS232 to IP converters (also known as Serial Device Servers) so that they can use the Total Recall IP SMDR interface.
Here are few example products that can be sourced locally (in Australia):
- http://www.opengearstore.com.au/category_s/5.htm
- http://www.ieci.com.au/products/Product_Page2.asp?Product_ID=2182
Or simple google "serial device server".