2N BRI Lite/Enterprise v1.1 - Manual (Page 10)

Product Description 1.1
10
DialThru (2N
® BRI Enterprise)
The difference between 2N ® BRI Enterprise and 2N ® BRI Lite lies in the DialThru
functionality. DialThru enables the gateway to be connected between the PBX and the
voice service provider line, i.e. PSTN. The GSM gateway in the DialThru mode routes,
based on the LCR, calls into the PSTN or GSM/UMTS networks.
Refer to the figure below for a schematic diagram of the 2N
® BRI Enterprise
connection.
The gateway works as a dial-through router (using both the TE and NT ports in the
DialThru
mode) for calls to a mobile network, and a monitoring system, which, with the
appropriate licence, sends SMS to the provider (in the case of line unavailability, e.g.).