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Chapter 3 Preparing the Cisco CallManager and Octel Systems
Configuring Cisco CallManager
3-4
Cisco Digital PBX Adapter 7630 Administration Guide
78-11069-01
Cisco CallManager only recognizes these IP phones after the Octel voice mail
system is up and running. So, verify that the Octel system and the Cisco DPA 7630
are up before completing these tasks in Cisco CallManager.
Auto-registration automatically assigns phones a directory number. The directory
number assigned is the next one available in sequential order within the device
pool assigned to this phone type in Cisco CallManager. However, if you need to,
you can modify this directory number for each emulated phone (see the
“Configuring the DPA Ports and Phones” section on page 3-5).
During auto registration, the host name assigned to the DPA 7630 is entered in the
Description field in the record for the emulated phone in Cisco CallManager. If
you do not enter a host name, the following sequence applies for the device
description: SEP + the last 10 digits of the MAC address.
Additionally, Cisco CallManager requires unique MAC addresses for all devices,
but all 24 ports on the DPA 7630 share the same MAC address. Therefore, an
automatic conversion process converts the MAC addresses into this format:
1. The first two digits for the MAC address are dropped.
2. The number is shifted two places to the left.
3. The two-digit port number is added to the right.
For example, if the MAC address is
000039A44218
the MAC address registered for port 12 in CallManager is
0039A4421812
The 25th virtual port is automatically assigned the MAC address of
0039A4421825.
Adding the DPA 7630 Manually
If you want to assign specific directory numbers to the emulated IP phones on the
DPA 7630 without using auto-registration, you must manually add each phone to
the Cisco CallManager database. Keep in mind several important facts:
• Each port must have a unique MAC address. Use the auto-registration
formula.
• Use the host name or other name for the Description for each port. Use the
same name for ports configured on the same DPA 7630 system.
• Add each port on the DPA 7630 as a Cisco IP Phone 30 VIP.