1.3.3.5 Bidirectional talk
⚫ You can perform the voice interaction between the Device and the remote device to improve efficiency
of emergency.
⚫ Step 1 Click button to start bidirectional talk function the icon now is shown as . Now the rest
bidirectional talk buttons of digital channel become null too.
⚫ Step 2 Click again, you can cancel bidirectional talk.
1.3.3.6 Switch bit streams
⚫ Via this function, you can switch the channel main stream/sub stream according to current network
bandwidth.
⚫ M: Main stream. Its bit streams are big, and definition is high. It occupies large network bandwidth suitable
for video wall surveillance, storage etc.
⚫ S: Sub stream. Its definition is low but occupies small network bandwidth. It is suitable for general
surveillance, remote connection etc.
⚫ Click to switch the bit stream type of the main stream and sub stream.
⚫ M: Main stream.
⚫ S: Sub stream. Some series products support two sub streams (S1, S2). Refer to "1.2.5.1 Encode" for detailed
information.
1.3.3.7 Right-Click Menu
⚫ By right-clicking the menu, you can quickly access the corresponding functional interface and perform
relevant operations, including entering the main menu, searching records and selecting screen split mode.
⚫ Right-click on the preview interface and the right-click menu is displayed. See Figure 1-69. Refer to
Table 1-18 for detailed information.
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