Projects

ČEZ IP Telephony Data Centres

2010

I contributed to the design and implementation of IP telephony data centres for the ČEZ Group, including firewalling and redundant interconnection.

I designed the IP addressing scheme and cabling layout, created the documentation, and first modelled the network in GNS3. I designed and tested redundant interconnection between the data centres, as well as integration of the video and radio networks with the IPT network.

I integrated Cisco ASA firewalls into the data centres, migrated servers behind them, tuned the rule sets, and worked through SCCP protocol inspection and voicemail registration with Cisco Unified Communications Manager. I brought the project through to acceptance testing.