Instruction/ maintenance manual of the product OL-8356-01 Cisco Systems
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CH A P T E R 9-1 Cisco CallManager Secu rity Guide OL-8356-01 9 Phone Hardening T o tighten secur ity on the phone, you can perf orm tasks in the Phone Co nfi guration windo w i n Cisco CallM anager Admini stration.
9-2 Cisco CallManager Security Guide OL-8356-01 Chapter 9 Phone Harden ing Disabling the PC Voice VLAN Access Setting Disabling the PC Voice VLAN Access Setting By default, Cisco IP Phones forward all packets that are receiv ed on th e switch port (the on e that fac es the upstream switch) to the PC port.
9-3 Cisco CallManager Secu rity Guide OL-8356-01 Chapter 9 Phone Hardening Configuring Phone Hardening Configuring Phone Hardening Caution The follo wing procedure disables functionality for t he phone.
9-4 Cisco CallManager Security Guide OL-8356-01 Chapter 9 Phone Harden ing Where to Find More Information Related Cisco Documentation Cisco IP Phone Administratio n Guide for Cisco CallManager.
An important point after buying a device Cisco Systems OL-8356-01 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Cisco Systems OL-8356-01 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Cisco Systems OL-8356-01 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Cisco Systems OL-8356-01 you will learn all the available features of the product, as well as information on its operation. The information that you get Cisco Systems OL-8356-01 will certainly help you make a decision on the purchase.
If you already are a holder of Cisco Systems OL-8356-01, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Cisco Systems OL-8356-01.
However, one of the most important roles played by the user manual is to help in solving problems with Cisco Systems OL-8356-01. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cisco Systems OL-8356-01 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
