Toa N-8000 Series - Manual (Page 606)

8-6
Chapter 8 APPENDIX
2. BASIC KNOwLEDgE ABOUT NETwORKS
2.1. IP Networks and Address
The IP networks that the Exchanges, various kinds of interface units and IP stations can use include Local Area
Networks (LAN) used in small-scale area, such as within or on the premises of a company, and the Internet,
which covers a wide area over remote distances.
Internet Router Router
N-8000EX
(C)
N-8000EX
(A)
N-8000EX
(B)
LAN
LANs differ from the Internet in the IP address to be used.
Local IP address (private IP address):
This address is used and can be freely set within the LAN.
Global IP address:
This is the only one address that is used to access the Internet.
To use the Exchanges, various kinds of interface units and IP stations through the Internet, a fixed global
IP address must be acquired and assigned to each unit. When using the router, set the global IP address
to it.
When a connection is made from Unit B to Unit A in the above figure, the local address can be used. However,
when a connection is made from Unit C to Unit A, the global IP address must be used.
The fixed global IP address must be assigned to the units connected via the Internet.
Consult with a network administrator or ISP (Internet service provider) for the acquisition of a fixed global IP
address.
Note
The Internet is not guaranteed quality. Packet loss may result if the network is congested, possibly causing
voice communications to be interrupted or noise to be generated.
1.3. what If You Failed to Make Conversation Properly
• If the voice switches of the master and door stations do not flip properly, adjust the microphone sensitivity and
speaker output volume of the stations. (For the master station, refer to p. 2-5 , 5-65 and 5-80 , and for the
door station, refer to p. 5-65 and 5-80 .)
• Though IP stations are so designed to always ensure optimum hands-free conversation automatically, adjust
the microphone sensitivity and speaker output volume of the stations if voice switches do not flip smoothly.
(Refer to p. 2-5, p. 2-98, and 5-65 .)
• Press the PTT key to establish conversations if one-way conversation from the station in higher ambient
noise area occurs during hands-free conversation between stations or when acoustic echo is generated
during conversation.