Dahua ASA2212A, Руководство пользователя

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3.6.3.2 Edit and Delete Bell
You can search bell in system and modify and delete bell.
Select Features>Bell setup>Search&Delete Bell, click . See Figure 3-39.
Figure 3-39
Edit and Delete Single Bell
Select bell, click . See Figure 3-40.
Figure 3-40

Select Edit, click to edit bell info.

Select Delete, click to delete bell info.
Delete All Bells
Click , switch to delete and search above, see Figure 3-41.