case study for more information visit sepura.com 2010 SA World Cup / September 2010 / Page 1/3 Minimising voice traffic on the Johannesburg City TETRA network was a priority. With the number of users on the network, there was a real concern of adversely loading the system – leading to vital communications being compromised. Sepura’s Short Data Application (SDA), enabling data messages to be sent over a control channel from one of the local TE

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