An IP phone typically obtains an IP address in the following ways:
Dynamic Host Configuration Protocol (DHCP): DHCP is a network protocol through which an IP phone can send a request to a DHCP server on the network to obtain an available IP address. The DHCP server will assign an available IP address to the IP phone and configure it on the device, enabling it to communicate with the network.
Static IP Address Assignment: Another method is to manually configure the IP address. In this case, you need to manually enter network configuration information such as the IP address, subnet mask, gateway and DNS server into the IP phone for unique identification on the network.
Assignment by Network Administrator: If you use an IP phone in an enterprise or organization, the network administrator may assign a specific IP address to the phone. In this scenario, the network administrator will configure the required network settings on the IP phone to ensure its normal connection to the network.
Whether the IP address is obtained automatically via DHCP or configured manually, it serves to enable the IP phone to identify and communicate with the network. Therefore, ensuring that an IP phone obtains the correct IP address is crucial for its normal operation on the network.