Power on and initialize hardware and software.

Ip phone boot process. As the Cisco IP Phone powers on the Cisco switch delivers voice VLAN information to the IP phone using CDP as a delivery mechanism. But in a nutshell unless you are statically assigning the phone and telling it what to do you need a dhcp server with a SSON that tells the phone what vlan to goto what file server to get its config file firmware from where to register to that is a very very small nutshell But that is laymans terms read the document and also these. Understanding the Phone Bootup Process.

If the IP phone and switch support PoE the IP phone receives power through either Cisco-proprietary PoE or 8023af PoE. Using this image the phone initializes its software and hardware. Here is the Cisco IP Phone boot process start to finish.

This Cisco Discovery Protocol packet provides the IP Phone with voice VLAN information if. The steps are illustrated in Figure 7-2 and outlined as follows. IP phone booting automates registration allowing you to save time by bypassing manual configuration.

The phone will then boot-up its firmware image. Remember if you have any questions feel free t. The Cisco IP Phone now knows what VLAN it should use.

2-Concept of Boot Steps. Hello KSB You have to be a little bit more specific in what information you are after. At startup the phone runs a bootstrap loader that loads a phone image stored in Flash memory.

Cisco IP Phone Boot Process Once IP phone is connected to a network it goes to following standard steps to get registered to Call Manager and to get a directory number. A figure below shows the overview of Cisco IP phone startup process when IP phone is connected to Cisco Catalyst switch capable of providing PoE. The Cisco IP Phone obtains power from the switch.