2N VoiceBlue Next v3.0 - Manual (Page 40)

Call Routing 3.3
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Model situation description:
A client is calling Mr. Green at 2N from his or her fixed line. According to the company
PBX configuration, all calls to line 111 (Green‟s office phone) automatically alert line
333 too (red arrows). Suppose Mr. Green is on a business trip. The GSM gateway
automatically forwards the call to Mr. Green‟s mobile number (orange arrow).
Mr. Green answers the call on his mobile phone. If the client wants to appoint a
meeting, Mr. Green parks the active call using a DTMF code and calls (blue arrows)
line 222 to get through to his secretary‟s extension. Having agreed with the secretary,
Mr. Green transfers the parked call to the secretary and hangs up his mobile phone
(green arrow).
Tip
 In case the gateway – mobile phone connection is unsuccessful, the PBX
can send an SMS message including the calling number.
Correct ME configuration:
 Connect the GSM gateway to your PBX/SIP Proxy.
 Check whether the Mobility Extension licence key has been entered
correctly.
 Enter another prefix in Gateway configuration, Prefixes menu that
matches the MSN to which the PBX/SIP Proxy is calling (e.g. 333 as
shown in the figure above).
 Enter all ME users in the Gateway configuration, Mobility Extension
menu.
LCR Table
The LCR (Least Cost Routing) table is the key telephone cost cutting factor. It helps
you select call routes according to the called subscriber‟s number and the day time
and weekdays. By adding bank holidays to the LCR table you achieve even higher call
cost savings.
To make your prefix and LCR routing work properly, enter the prefix and the total
count of digits for the number to be dialled to a GSM/UMTS network in the List of
networks. Furthermore, make sure that the SIM card of the provider consistent with
the defined group has been inserted in the GSM gateway. Use the Assignment to
GSM groups table to assign outgoing and incoming calls to groups.
Whenever a call is to be set up, the LCR table is searched sequentially from top to
bottom. If the called destination prefix matches the network prefix included in the List
of networks table (and designated as Network number in the LCR table), the call is
routed according to the routing group parameters (Groups in the LCR table) as set in
the GSM outgoing groups table. The call will be connected via the GSM module as
assigned to the GSM outgoing group in the Assignment to GSM groups table.
If the selected GSM/UMTS module is busy, the call is routed according to the next
routing rule in the Groups as defined by the GSM outgoing groups table. Again, the
Line 222