I recently obtained my Glo-line because I want to easily connect to NITEL land line numbers

From the telecoms end, linux is being used to host GSM protocols because the linux kernel can be custom built and configured for a broad vareity of hardware platforms. For Telecommunications computing, Red Hat is the standard. Specifically, for cell phone operating systems, embedded linux is becoming popular.
Windows is hardly used for teleccom infrastructure

I know it may sound as if I am off point, but computing and telecoms have merged a long time ago.