4G LTE FWT ETS-8848 User's Manual Version 1.0
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The sketch for connecting to Billing device or Computer charging system
3) The installation for connecting to PBX for call extensions
If users want to connect small PBX to this terminal, connect terminal’s “Phone
port” to the PBX.
The sketch for connecting to PBX device.
4) The installation for connecting VoIP gateway for Call Termination
Suppose a VoIP call originates from US, which was transferred from US Server
to China Server on VoIP, finally the call will be terminated from internet to 4G
LTE network and to be sent out to the destination answer side.