Oki BV1250, Руководство по установке

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Oki BV1250 Installation Guide APPENDICES
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and communication via PBX. This category of service functions
includes functions corresponding to each type of communication.
Communication through IP network
One of the service functions supported by BV1250. It provides a
mutual communication, through the IP network, among the terminals
(ordinary analog telephone set, G3 fax machine) connected directly to
another BV1250.
Communication through PBX
One of the services supported by BV1250. Terminals (ordinary
telephone set, G3 fax machine) connected to BV1250-EM can
communicate mutually and also with the terminals accommodated
directly in BV1250-AP.
Delay-start
A PBX startup method (timing method) used by the BV1250. Delay-
start is the time from PBX startup to the arrival of a selection. The
pre-pause method is used to perfect receive operation of selection
signal or to perfect a PBX connection by the selection signal.
DNS (Domain Name System)
DNS is a distributed data base system that stores IP addresses and
corresponding domain names. The DNS was originated to represent
IP addresses such as 202.203.90.60 used over the IP network, by easy
to understand names. Typically one or more DNS servers is located in
an IP network.
DNS function
For the BV1250, a function that manages translation information that
converts a dialed number (identification number assigned to each unit)
to a number that represents the IP address of a called unit. Typically, a
translator is placed in the DNS server located in a network, and a
unified numbering management (integrated management) is
implemented. When a DNS server is not used, translation data is
stored BV1250 units.
DNS information
A number dialed by a telephone set is changed to an IP address using
the DNS (Domain Name System). The IP address is the number used
to actually set up a call over a voice network.
E&M
E&M is an abbreviation for out-of-band signaling. It is also known as
E&M Type 1 or E&M Type 2.
EMIF board
This line interface board provides the BV1250 with the E&M (Type 1
or Type 2) interface. This interface allows PBX and Key Telephone
System trunk lines to be directly connected to BV1250.