No telephonic round. This was a scheduled event to be completed in the same day.
First round was written test round to be completed in your language of coding or scripting. This code has to be executed on a machine which they will give. It should be a working code. Basic unix questions on how to get system details like mac address, IPV4 address, CPU usage, memory statistics, setting up a cron job , writing to a log file etc. You have to use some AWK, SED etc
Next 3-4 rounds are technical rounds on various telecommunication related architectures and systems. All rounds will consist of some questions related to java internals, APIs etc. Testing basics and methodologies are also concentrated. Overall functional testing and scenarios while testing distributed systems was given more importance.
Last round will be with the director of the team.