![](/s/en_GB/3145/191/_/images/icons/emoticons/warning.png)
Click on the button beneath the Trunks list (right-hand window), to display the
following window. Enter the trunk number and a name for the new trunk in the respective text boxes and press
the button. If you don't enter a name, TIM will provide
one in the form Extn x where x is the number of the trunk.
![Adding a new Trunk](http://www.tri-line.com/common/img/documentation/tim_professional/adding_trunk.png)
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