PRIma Gate
30
6.3.3
GSM outgoing groups
In this section you can set rules for outgoing calls from ISDN PRI to GSM networks.
From the first
SIM card will be switched from the first to the last in its group.
Cyclic
SIM card will be switched from last e1.
By remaining credit
The gateway routes calls as in the cyclic mode but selects the GSM modules according to the
least number of called minutes instead of cyclically.
Modules in group
Bottom section informs about modules in each group.
6.4
LCR (Least Cost Routing)
A fully intelligent LCR function is the basic tool, allowing to route outgoing ISDN calls to
GSM networks (or ISDN network) by the called number prefix, and calling party number and
GSM module load in the particular group. Least cost routing (LCR) is the process that
provides customers with cheap telephone calls. Each outgoing call from gateway interface
will be routed to GSM network according to CLIP table and Routing Table Gateway at each
call check line to line and in case that called prefix is same as prefix stored in Routing Table
the call will be routed via defined GSM group(s) or via E1-B interface.