Understanding the concept of LDN

[cdpak]

I am having trouble understanding the concept of LDN.
Mitel SX200 AX
5.0.3.2 SW
Attendant Superconsole
5324 IP sets
The customer has 10 LS lines. They wish to have these ring at the Att Console and at 2 of the 5324 sets. The lines do ring at the Att Console. I have programmed the 5324 sets as 5324 Sub Att.
I simply do not understand the concept of LDN's or how to point the incoming calls toward them. I would think that putting the sets in a Ring group with Multiline keys would be the answer but I realize that this is not possible.

 

[pandabear1]

you have probably already programmed LDNs in form 8 for the console and now you have a Sub Att with sub attendant options i.e. 606, 609 etc., now you can program the same LDN key on the 5324 you have on the console so when a particular LDN rings into the console it can also ring/delay ring/no ring at the sub attendant. If you have the 10 LS trunks ringing into a particular LDN in form 8 you can also have them ring at your sub attendant. Expand your 5424 then choose LDN as the "Type" and EXT NUM" the same as form 8. Hope this helps

 

[pandabear1]

from the docs, you should check the docs out as there is a more detailed section on this, below is just a small portion of it:

Subattendant - LDN Keys
Description
Each subattendant can have up to six keys programmed as Listed Directory Number (LDN) keys. The LDN keys appear on the subattendant telephone line keys. The LDNs may be programmed to appear on other subattendant telephones or attendant consoles to permit greater call handling flexibility. When this occurs, the COS and tenant of the subattendant LDN is taken from the subattendant or console with the lowest bay, slot and circuit on which the LDN is programmed.
The LDN keys and the RECALL key (see Subattendant - Recall) act as call queueing indicators. Unlike line keys; they cannot be selected to dial on and conversations cannot be held on them. When a subattendant LDN call is answered, the call is automatically connected to the prime line of the subattendant telephone.
Each LDN position can be programmed as the answer point for a trunk or reroute destination for a particular type of call. To ensure that the prime line is free to answer any LDN calls, the subattendant prime line cannot be programmed to appear on other devices.
The subattendant can answer an LDN call three ways:
- by going offhook; the longest waiting LDN call is then automatically connected to the subattendant’s prime line, or
- by pressing the SPEAKER key; the longest waiting LDN call is then automatically connected to the subattendant prime line, or
- by selecting the LDN key directly.
LDN keys with “ring type” set to NO RING are not automatically selected when the subattendant goes offhook (or selects the SPEAKER key), and therefore must be answered manually by selecting the No Ring LDN key.
Once answered by the subattendant, an LDN call is treated as though it were a regular call received on a SUPERSET telephone or Mitel IP Phone, with the exception of serial calls.