Xblue Networks X-25 - Manual (Page 90)

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Trunk
A trunk also known as a Telephone or Central Offi ce (CO) Line, provides access to the telephone company,
Public Switch Telephone Network (PSTN). The
X -25 is equipped with four PSTN (POTS - Plain Old Telephone
Service) ports which are analog lines that are usually connected to a traditional telephone line provider, such
as home telephone Lines. In addition, the
X -25 has the ability to authenticate up to four “Cloud” telephone
lines, such as XBLUE Cloud’s low cost premium quality telephone lines, using Session Initiated Protocol (SIP)
known as SIP Trunks.
What does that say?
Plain Old Telephone Lines which are
analog telephone lines, known as Plain Old
Telephone Service or POTS Lines. Each of
these lines connect directly from the telephone
line provider (telephone company) to your
local system.
Unlike analog telephone lines, SIP Trunks
(Cloud telephone lines) connect right over
your broadband connection, and do not
require a physical connection to the
X -25 system. Each SIP
Trunk is assigned a special authentication ID and Password, which
authenticates and systemically connects them from the telephone
line provider and your system. Once programmed, each telephone
line can be programmed on a programmable button on your
X-2020 telephone. Accessing one of these lines is as easy as
pressing the button.
Because SIP Trunks are accessed through your broadband (Internet)
connection it is important that there is enough bandwidth. Although
each call will take approximately 200 Kilobytes, when combined
with your existing data usage you will want to contact your Internet Service Provider (ISP) to ensure that your
bandwidth is suffi cient to handle both voice and data traffi c. It is suggested that a minimum of 7 Megabytes
down and 1 Megabytes up, known as 7 x 1 be used when using Cloud Telephone Lines. As a standard rule, for
a small business with standard data usage, a 7 x 1 connection should be enough to support most voice and
data traffi c.
Internet
(The Cloud)
“Wireless Local Area Network (WLAN)”