Getting Started 
11 
To connect a PC or mobile device: 
1.  Connect one end of the 3.5mm jack cable to the PC/mobile port on the phone, and 
connect the other end to the headset jack on the mobile device or the AUX/MIC 
jack on the PC. 
 
The initialization process of IP phones is responsible for network connectivity and 
operation of IP phones in your local network. 
Once you connect your IP phone to the network and to an electrical supply, the IP phone 
begins its initialization process. 
During the initialization process, the following events proceed: 
Loading the ROM file 
The ROM file resides in the flash memory of IP phones. IP phones come from the factory 
with a ROM file preloaded. During initialization, IP phones run a bootstrap loader that 
loads and executes the ROM file. 
Configuring the VLAN 
If IP phones are connected to a switch, the switch notifies IP phones of the VLAN 
information defined on the switch (if using LLDP). IP phones can then proceed with the 
DHCP request for their network settings (if using DHCP).