Справочник Пользователя для Mitel 2700-1398-B1

Mitel NuPoint Messenger Technical Documentation - Release 7.0

 

Starting digit position of NPAEnding digit position of NPA 
Starting digit position of NXX 
Ending digit position of NXX 
Home NPA 
Check/do not check numbers without absorb digits 
Absorption digit patterns 
Exact match numbers 
Exact match number patterns 
NPA screening 
NXX screening 

00 
0 
0 
None 
Do not check 
None 
Disallow 
None 
Disallow 
Disallow 

 

Without NPA/NXX call screening, the system restricts outdials only by the number of digits to be 
dialed.  With NPA/NXX call screening, the system restricts the outdial capabilities for a mailbox by 
allowing calls to be made only to certain area codes or to certain prefixes within an area code. 

The system prioritizes the screening process in the following manner: 

1.  Removes the absorption digits (numbers at the beginning of the dial string that allow access 

to outside lines) from the dialing string prior to the screening process.  These numbers were 
entered in the Digit Absorption Table, one of the RCOS menus.  

2.  Compares the number called to the Exact Match Table, one of the RCOS menus, which 

specifies whether the number is allowed or disallowed.  Table 8-9 shows the screening 
method. 

3.  Counts the remaining number of digits.  If the dial string does not contain an NPA (area 

code), it adds the home NPA. 

4.  If the system does not receive an exact match for the dial string, it then continues with the 

NPA/NXX screening. 

5.  Passes the NPA to the NPA Table, one of the RCOS menus, and determines if the area code 

is allowed or disallowed.  Table 8-10 shows the screening method. 

6.  If the NPA contains an NXX Table, another RCOS menu, the system disregards the selection 

of the allow or disallow status for the area code.  The determination of whether to allow the 
call is based only on whether the prefix is allowed or disallowed in the NXX Table. 

7.  Screens the number with the NXX table.  Table 8-11 shows the screening method. 

8.  Allows the number or notifies the mailbox owner that the number is not within the mailbox 

owner’s calling area. 

Is the number in the 
table? 

If the table is to allow the 
call, the system... 

If the table is to disallow 
the call, the system... 

Yes 

Allows the call 

Blocks the call 

No 

Blocks the call 

Allows the call

 

 

Is the NPA in the table? 

If the table is to allow the 
call, the system... 

If the table is to disallow 
the call, the system... 

Yes 

Checks for NXX table.  If 
no NXX table exists, 
places the call. 

Blocks the call 

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