FT5X User Guide
wireless relay line separately, this mode is a best choice.
The device’s external line socket connects with PBX internal interface (EXT ports). The external
line socket connects with the internal interface (EXT ports) or any extension. The PBX
extension can call the extension number of access terminal and then realize the voice call in
and call out through the access terminal that access the GSM/GPRS. Application plan B is show
as follows:
PBX extension access mode application
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