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same number range from two PSTNs cnfiguration 2

Publication Date:  2013-07-27 Views:  72 Downloads:  0
Issue Description
as following pictures, two PSTN send the same number ranges to our U1980
Alarm Information
no
Handling Process
take a example below :
1. add two callsource
config add callsource no 1 areadn 51
config add callsource no 2 areadn 52
2. add different trunkgroup to different callsource
config modify trunkgroup no 1 callsourceno 1
config modify trunkgroup no 2 callsourceno 2
3, add the number change but the type must be insertbycallsource
config add predeal index 7 changetype insertbycallsource

4 add internal prefix 3, when the CLDPREDEAL is insertbycallsource, it will add the areadn in front of the number.
config add prefix dn 3 callcategory basic callattribute inter cldpredeal yes cldindex 7 minlen 0 maxlen 32

5. add the internal prefix 51 and 52, so that phone can recieve it
config add prefix dn 51 callcategory basic callattribute inter cldpredeal no m 0 m 32
config add prefix dn 52 callcategory basic callattribute inter cldpredeal no m 0 m 32

when trunkgroup 1 (callsource 1)dail 3800,add the 51 in front of the number,it will analyze prefix 51 to find the phone
when trunkgroup 2 (callsource 2)dail 3800,add the 52 in front of the number,it will analyze prefix 52 to find the phone 

by this way, we can fully use the same number to different phones. 
Root Cause
normally if the same number send to our device, and no change is made, only one phone will occupy two numbers from different lines, thats a waste, so we need to have two phones which can fully use the same number from different PSTN.  so we need to use number change by insertbycallsource, so the number can be second analyze and change.
Suggestions
if u want to know how to configure when our device connect two other PBX not the phones, refer to the case <<same number range from two PSTNs cnfiguration 2>>

END