Directory Numbers¶
The Cisco HCS dial plan enables the creation of directory numbers (Cisco Unified Communications Manager Internal DNs) with these choices of characteristics:
Dial Plan Classification¶
| Dial Plan Configuration Type | Site Location Code (SLC) | IDP (Inter Site Prefix (ISP)) | IDP in DN | Extension Dialing Prefix (EDP) | Extension Format |
|---|---|---|---|---|---|
| 1 | Yes | Yes | No | Unnecessary with ISP | SLC + Ext, No ISP in SLC |
| 2 | Yes | Yes | Yes | Unnecessary with ISP | ISP+SLC+Ext (ISP is part of SLC) |
| 3 | Yes | No | No | Yes/No | SLC+Ext and no ISP, can be with or without EDP |
| 4 | No | No | No | Not Applicable | Ext (Flat Dial Plan/ no SLC) |
