1-11 Voice VLAN ConfigurationThe sample output information in this manual was created on the WX3024. The output information onyour device may vary.Voice VLAN OverviewVoice VLANs are VLANs configured specially for voice traffic. By adding the ports connected with voicedevices to voice VLANs, you can have voice traffic transmitted within voice VLANs and performQoS-related configuration for voice traffic as required, thus ensuring the transmission priority of voicetraffic and voice quality.How an IP Phone WorksIP phones can convert analog voice signals into digital signals to enable them to be transmitted inIP-based networks. Used in conjunction with other voice devices, IP phones can offer large-capacityand low-cost voice communication solutions. As network devices, IP phones need IP addresses tooperate properly in a network. Normally, an IP telephone automatically acquires an IP address from aDHCP server in its network.When an IP phone applies for an IP address from a DHCP server, the IP phone can also apply for thefollowing extensive information from the DHCP server through the Option184 field:z IP address of the network call processor (NCP)z IP address of the secondary NCP serverz Voice VLAN configurationz Failover call routingThe following contents just describe the IP address acquiring process of IP phones in general. DifferentIP phones may work differently. Refer to the IP Phones User Manual for details.Following describes the way an IP phone acquires an IP address.
