StarTech.com SV1115IPEXT - Manual (Page 49)

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Reset: Equivalent to pressing the RESET button on the managed
computer. (The computer will restart.)
ON/OFF: Powers the host computer on or off depending on the current
state of the host computer; equivalent to pressing the POWER button
on the host computer.
NOTE: IPMI may not automatically close the host computer software
safely when you issue a reset or power off command. Since these
features are equivalent to pressing hardware buttons on the computer
itself, the computer will respond in exactly the same way. Always shut
down your operating system and application software normally before
issuing an IPMI command to avoid data loss or corruption.
Using the Modem Feature
Background
The modem feature allows the SV1115IPEXT to act as an Internet
connection server for increased security and flexibility in connecting
with the host computer. Unlike the TCP/IP connection used with the
standard Web configuration and VNC clients, the modem creates a
one-to-one connection between the SV1115IPEXT and the computer
you are using to manage the host computer that is essentially private,
as it bypasses the public Internet completely. Note: this feature requires
both an external modem (most standard connection protocols are
supported) and a dedicated phone line that can be connected to the
modem for external access. While it is possible to use the modem
feature through some PBX systems, this increases the complexity and
reduces the performance of the connection. For clarity, the instructions
presented here assume that the modem is connected to a typical
POTS (plain old telephone system) line that is not routed through
a phone management system or shared with other devices. If you
wish to use this feature through a PBX system, it may require some
experimentation and additional support from your telecom services
provider, and is not supported by StarTech.com.