INSTALLATION MANUAL
Outgoing from PABX
The outgoing calls exit through the FXO connector of the PABX which is linked to the FXS interface
of Voxell LCR . The PABX directs the calls to mobile networks through the Voxell LCR unit. The
calls will be routed according to the number dialed through GSM. If the number dialed is for the
public PSTN network, the PABX will route the call through another FXO junction, directly to the
public network.
Incoming to PABX
Calls from mobile networks get into PABX via the FXO connector of the Topex LCR unit.
When a GSM call comes in, if the setting in the “GSMwindow“ is target, the call will go to the
local extension you have specified in the field “Target No”.
Since Voxell LCR is connected to a local extension via FXS, for the PABX this is the same as if it
were a local call!
If the setting is DISA, the caller gets a DISA tone and he can dial any local subscriber he wishes.
Also, he can make calls to the public network, acting as a local subscriber of the PBX.
Incoming calls from the 2G/3G networks will be forwarded to the FXO interface by checking the
identity in the CLIP-GSM table and in case of missing ID or number not found in the records, by
checking the GSM port settings..
7.7.5
Using several Voxell LCR units
It is possible that you need to connect more than one Voxell LCR to the same PABX. For example,
you want to use two or more mobile operators for optimal routing. For instance, in Romania there
are four different mobile network providers. Alternately, you may want to have several 2G/3G
modules for the same operator, if there is an intense GSM traffic or if you have established that
when one 2G/3G module is busy, the call to be routed through another module. In this case
several Voxell LCR units (two, three or more) will be used with the same PABX.
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