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Go to the "Hardware" tab and choose the country in which the gateway is being installed.
Three other modes can also be chosen: FCC
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, TBR21
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, 1TR100_DE
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First, choose the right country mode. If you notice issues on the line, try one of the three above mentioned modes until it works well.
Once you have chosen the right mode, save your settings. You can either activate the configuration directly or do it at the end.
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To configure the dialplan in the right way, please visit this page: Understanding the beroNet dialplanDialplan
Here you will need to connect each group of ports to the right SIP trunk.