For your CSN SIM to work in your device you the APN will need to be set.

Navigating to the APN settings

From within the BroadNet PTT application follow the steps below: 

1. Press the # key to take you to the options page
2. Select "Exit" and confirm to take you to the terminals launcher
3. Select "Settings"
4. Move down the options to "Access point names" and select
5. Select "New APN"
6. Enter name as "csn"
7. Enter APN as "intelligence.m2m"

Please note the '.' (period) is entered by pressing the 1 key.