Why should you restart a codec before attempting to connect a Cisco TelePresence Touch 8″ to the codec over
a LAN?

A.
Restarting enables the codec to assign IP address information.

B.
Restarting activates pairing visibility mode for 30 minutes.

C.
Restarting activates direct pairing on the codec.

D.
Restarting ensures that any problems with the codec are cleared.

Explanation:
Restarting the codec activates pairing visibility mode for 30 minutes. Pairing visibility mode makes the codec
visible on the network so that devices can connect to it.
You can connect a Cisco TelePresence Touch 8″ to a codec over the LAN or by a direct connection to the
codec. To connect to a codec over the LAN, perform the following steps:
1. Restart the codec in order to activate pairing visibility mode.
2. Connect the touch screen cable to the power adapter.
3. Connect the Ethernet cable between the power adapter and the LAN.
4. Connect the power cable between the power adapter and the wall socket. The touch screen will initialize and
obtain IP addressing information from Dynamic Host Configuration Protocol (DHCP).
5. Select the codec name in the list, and then select Start Pairing. The touch screen will download and install
software from the codec, if necessary. If the codec is password
6. protected, you must enter a valid user name and password.7. Verify that the codec address appears in the top banner.
If the codec does not appear in the list of codecs, you should perform the following steps:
Ensure that pairing visibility mode is active on the codec.
Ensure that the codec and the touch screen are on the same subnet.
Select the codec manually by entering the codec’s IP address or host name.
To directly connect to a codec, perform the following steps:
1. Connect the codec’s first Ethernet port to the LAN.
2. Enable direct pairing on the codec, and then reboot the codec to activate direct pairing.
3. Connect the touch screen cable to the power adapter.
4. Connect the Ethernet cable between the power adapter and the codec’s second Ethernet port.
5. Connect the power cable between the power adapter and the wall socket. The touch screen will initialize and
then download and install software from the codec, if necessary.
6. Verify that the codec address appears in the top banner.
Restarting does not enable the codec to assign IP address information. Although restarting might clear any
problems on the codec, it is not required to do so. Restarting does activate direct pairing on the codec after the
direct pairing feature is enabled; however, direct pairing is not required when connecting a touch screen to the
codec over the LAN.

Cisco: Cisco TelePresence Touch 8″ Installation Guide (PDF)