2N PRI Gateways - User Manual - Manual (Page 9)

!! Preliminary version of user guide v1.8 !!
!! Preliminary version of user guide v1.8 !!
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2. Description – Main Features
Quick unit start – being free of an operating system (programmed in the processor code),
the system is completely ready to work within 30 seconds following its power on/restarting. Of
course, the full function time of all GSM modules depends on the actual load and capacity of
GSM networks to which the PRIGW is connected.
Intelligent call processing – the PRIGW is fully prepared to route PRI-ISDN outgoing
calls into GSM networks or back to second PRI ISDN interface and vice versa. A fully intelligent
LCR (Least Cost Routing) function is the basic tool, allowing to route outgoing ISDN calls to
GSM networks (or ISDN network) both by the called number prefix, and current date and time
and GSM module load in the particular group (LCR function is only on PRI 1 port, all calls to PRI
2 port will be directly rerouted to PRI 1 interface). Functions taken over from dialers, which
enable to replace a part or whole of the dialed number with another number, are a matter of
course. Calls incoming from GSM networks can be ignored (the calling party hears the ringing
tone), fully rejected (the calling party gets the busy tone/voice message), or received. In the
last-named case, the DTMF dialing in combination with voice messages, or direct connection to
the operator(s) can be selected (calls can be routed only to PRI 1 port). Using the 2N RCU (see
later), or XAPI with NQuire support, you can get a highly powerful routing tool, which contains
so-called blacklist charts – barred numbers - and practically unlimited routing charts. This
combination is extremely useful for installation sites with the so-called full telephone number
carryover where a plenty of numbers come into being whose prefixes do not match the official
prefixes of providers.
GSM
network 1
StarGate
BlueStar
BlueTower*
PSTN
network
Customer’s switch/PBX
Extension 1 calls number which is presented in
GSM network 1
Extension 2 calls number which is presented in
GSM network 2
Extension 3 calls number which is presented in
PSTN network 2
Extension 4 calls number with unknown (for
PRIGW) dialed prefix
GSM
network 2
Calls 1 and 2 are transparently*
rerouted to defined GSM
network
All incoming calls are
transparently rerouted to PBX
PRI2**
PRI1/ VOIP
*VoIP interface instead of PRI1 interface is not
available in BlueTower systems
** PRI2 interface is available only with PRI1
inteface (not with 12HP VoIP card)