FT5X User Guide
Switched data) uplink.
According to this communication plan, people do not need any change
when using the traditional POS, and allocate numbers remain the same. Application plane is
show as bellow:
Pos connection application
3.4 PBX relay mode application
the phone port connects with PBX exterior interface (TRUNK port), the exterior line port
connects with the entry line. Under normal situation, the PBX extension may realize call in or
out with the help of access terminal via GSM network. When power is off, device automatically
switches to PSTN network in order to maintain emergency calling in or out. Application plane is
show as bellow:
PBX relay mode application
3.5 PBX extension access mode application
This mode differ from the classic PBX rely access, this mode make the device connect with any
extension to realize the PBX extension call in or call out via GSM network. This mode will make
the PBX access more flexible and convenient. Moreover this device can be installed at anyplace
where the extension can be installed and easy to install without entering the PBX control room.
If the user wishes to extend the fully loaded PBX relay lines or manage the fixed relay line and
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