Max 8 and 8 Plus User’s Guide – Appendix
83
A. FXO stands for "Foreign Exchange Operator."
Basically, FXO allows you to connect the Max to
a PBX through an analog line card (SLIC/SLIB).
With an FXO unit, inbound PSTN calls and
remote calling are supported. The Max 8 Plus
and Max 8/16 both feature FXO versions.
Q. What bandwidth is required to use the Max?
A. The Max requires 17k bandwidth per line in
order to maintain a standard Quality of Service
(QoS).
Q. How do I upgrade the Max?
A. Upgrading the Max unit is a relatively quick and
easy process. Connect to the Web interface,
click on "upgrade" and follow the instructions.
During the upgrade procedure, no calls should
be made through the Max. Upgrade times vary
depending on available bandwidth, but normally
take no longer than five minutes
Q. Can I call any number through the Max (i.e. 911)?
A. Please be aware that special emergency and
informational numbers (i.e. 411, 611, 911, 0)
cannot normally be accessed through the Max.
However, if you have a Max with at least one
FXO port, it can be configured so that these
calls are routed through the Public Switched
Telephone Network (PSTN).
Q. What will happen if all of the lines from the Max
are in use? Can I still place a call?
A. The PBX can be programmed so that if all of the
Max lines are in use, calls will be routed through
the PSTN. If this happens frequently, it may be
time to add an additional Max or additional ports
in the case of the Max 8/16.
Q. Will the Max work with LCR (Least Cost Routing)
systems?
A. FXS and T1/E1 versions of the Max will work in
conjunction with PBXs that feature least cost
routing.
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