Store all numbers and codes (route and service codes) of a node and the numbers and codes that should be available in other nodes in the digit analysis of each node. Route and service codes lead to the digit analysis result (DAR) "NETW" with the destination number (DESTNO) as additional information. Network-wide station numbers lead to the DAR "STN" and also indicate the DESTNO. For this reason, you must allocate one or more destination numbers (1 - 255), unambiguous throughout the network, to each node in a closed numbering network.

You must assign each node a physical node number (PNNO in AMO ZAND) that is unambiguous throughout the network. You must also assign at least one virtual node number (NNO in AMO KNDEF) in each network node. The destination number makes the connection between digit analysis and device search (AMO RICHT) and only has to be unambiguous within a node.

Sometimes CO providers may overlap and the DDI number (called number) with TON=SUBSCRIBER cannot be analysed definitively.

e.g. then the DDI number is called with 7222XXX. The call could be for a subscriber 2XXX in the virtual node 1-1-200 or for a subscriber 22XXX in the virtual node 1-1-201.

To solve this issue you must also assign the KNDEF node to the CO trunk with parameter VKNNR in TDCSU

 +-----------+-------+--------------+ 
 | VIRTUAL   |  TYPE | ISDN (E.164) | 
 | NODE      |       | CC           | 
 | NUMBER    |       | AC           | 
 |           |       | LC SK        | 
 +===========+=======+==============+ 
 | 1- 1- 200 |OWN    | 49           | 
 |           |       | 89           | 
 |           |       | 722 3        | 
 +-----------+-------+--------------+ 
 | 1- 1- 201 |OWN    | 49           | 
 |           |       | 911          | 
 |           |       | 72 2         | 
 +-----------+-------+--------------+

You must manage the central office code in the dial plan (DPLN) on digit analysis point CO or TIE (but not NETW!) if you want to use it to reach an external node.

In DAR pairs, select CHECK=N if you do not want the DAR partner to be treated at the same time. Then you must configure the necessary partner with another command. This improves the runtime.

The default value is CHECK=ALL. If the station number contains special characters and TEST=ALL is specified, then this either this is DAR without the "dial pulsing" property or you must specify the parameter CDDP and, for DAR pairs, the parameter CDDP2.