User guide

System Administrator’s Guide – Release 7.5
______________________________________________________________________________________________
Toll Free 1-866-ALLWORX • 585-421-3850 • www.allworx.com
Revised: April 9, 2013
Page 114
device to device. For this setting on Allworx devices, Network
mode means it is the slave and Internal Mode means it is the
clock master.
Loop-back Mode
Enables the interface to be put into a diagnostic mode for
testing purposes. Generally speaking you always want to
select Normal Operation. The use of the test modes is
beyond the scope of this document.
Normal Operation
Transmit and receive lines that connect normally and all loop
back features modes are disabled.
Remote Frames
Incoming data is synchronized and decoded at the frame
level. These decoded frames are then reframed locally and
sent back out on the transmitted output line.
Remote Unframed
Decodes incoming data at the bit level from analog voltages
to digital bits and directly sent out as a stream of bits back
towards the source on the transmitted output line. No attempt
is made to synchronize or verify the data at the frame level.
Local Unframed
An internal analog loop back is performed on the local
interface so that transmit data is immediately looped back to
the receive path. This mode is useful for verifying that the
physical interface is operating correctly on the Allworx unit.
Although not strictly required, Allworx recommends using
B8ZS, ESF, and Clock Source Internal for such tests.
Line Build Out
Determines the pulse shape and transmit power levels used
on the analog output of the Digital Line interface. The dB
settings are for long haul configurations and the distance
settings for short haul configurations. Always use the short
haul settings since Allworx equipment is intended for use
with a local smart jack only and not for driving the physical
T1 lines on the telephone poles directly. You must pick the
length setting that matches the cabled distance between the
Allworx server and the service provider’s demarcation point.
If this setting is improperly configured line errors may be very
common or problematic and affect system reliability.
PRI Switch Type
Select the Primary ISDN (PRI) switch type that is used by the
service provider. Select NONE if this interface is not
connected to a PRI based service.
Note: If this parameter is improperly configured your
telephone service will most likely work, however there will be
subtle problems when certain type of conditions occur such
as calling cell phones, busy numbers, or during network
congestion. Additionally, Caller ID functionality may be
affected as well. Take care to find out the correct setting from
the service provider and set this parameter accordingly
Voice Channel Selection
Order
Determines the order the Allworx PBX will attempt to seize a
line for outgoing calls within each service group assigned to
this Digital Line. You want to set this selection to be the
opposite direction that the service provider uses for incoming
calls. For example, if the service provider hunts incoming
calls starting from slot 1 towards higher numbered slots