Xblue Networks X-50 Installation Manual page 18

Introduction
Remote Telephones
When connecting remote workers to the X-50 VoIP Telephone System it must have a fixed or static class A or B
IP Address. When creating a voice network (Campus Environment) the "Master" X-50 VoIP Telephone System
also must have a fixed or static class A or B IP Address. All other systems on the voice network can use Dynamic IP
addresses. This may require the ISP's Gateway to be programmed as a Bridge or a concurrent bridge.
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What does that say?
The Internet Service Provider (ISP) will program their DSL/Cable
modem to be a bridge or a concurrent bridge allowing the X-50 VoIP
Telephone System to join the network parallel to the ISP's DSL/Cable
modem. If needed, this also allows the X-50 VoIP Telephone System
to become the main router on the Local Area Network (LAN).
When connecting remote workers to a X-50 system, it must have a
static IP Address. When creating a voice network or "Campus
Environment", only one of the X-50 systems must have a static IP
Address.
Any X-50 with a static Class A or B IP Address will support remote
workers, even if they are a node on a voice network.
XBLUE Networks
Remote telephones are directed
to the static IP Address of the
WAN port, which will have a
Class A or Class B IP Address.
Once registered, the WAN port
of the X-50 keeps the
telephone endpoints active by
sending "keep alive" packets to
each of the remote telephone
endpoints.
The Remote telephone should
set the Session Timer to 20
seconds.