Net2Phone Max 8 User Manual page 10

Max 8 and 8 Plus User's Guide
·
FXS (Foreign Exchange Station) interfaces
are used to connect standard analog
devices such as corded and cordless
telephones or fax machines. Optionally, they
may be connected to the analog trunk card
on PBX, APBX, or KPS (Key Phone System)
systems. They are used to place outgoing
calls over the Internet and to receive
incoming calls from other Net2Phone
devices.
·
FXO (Foreign Exchange Office) ports
connect to the analog line card on a PBX,
APBX, or KPS (Key Phone System), or to an
analog phone jack, to provide connectivity to
the Max from phones both inside and
outside of the PBX system. In addition to the
FXS functions, FXO ports provide limited
IVR (Interactive Voice Response)
functionality, which includes multiple options
for caller greetings, passwords, and Internet
call forwarding. This allows the Max 8 Plus
to assume many IVR functions when the
PBX does not provide them.
A separate port with its own telephone line
connection to the PBX, or to an analog telephone,
is required for every concurrent telephone call (or
conversation). For example, if the capability for
five concurrent calls is desired, then the Max must
have at least five ports connected to the PBX or to
analog telephones.
The Max 8 and Max 8 Plus features several
proprietary Quality of Service (QoS)
enhancements, including
1. G.168 echo cancellation
2. Voice activity detection (VAD)
3. Comfort noise generation (CNG)
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Section 1