Operation Manual – Voice VLANH3C S3100 Series Ethernet Switches Chapter 1 Voice VLAN Configuration1-1Chapter 1 Voice VLAN ConfigurationNote:The contents of this chapter are only applicable to the S3100-EI series among S3100series switches.When configuring voice VLAN, go to these sections for information you are interestedin:z Voice VLAN Overviewz Voice VLAN Configurationz Displaying and Maintaining Voice VLANz Voice VLAN Configuration Example1.1 Voice VLAN OverviewVoice VLANs are VLANs configured specially for voice traffic. By adding the portsconnected with voice devices to voice VLANs, you can have voice traffic transmittedwithin voice VLANs and perform QoS-related configuration for voice traffic as required,thus ensuring the transmission priority of voice traffic and voice quality.1.1.1 How an IP Phone WorksIP phones can convert analog voice signals into digital signals to enable them to betransmitted in IP-based networks. Used in conjunction with other voice devices, IPphones can offer large-capacity and low-cost voice communication solutions. Asnetwork devices, IP phones need IP addresses to operate properly in a network. An IPphone can acquire an IP address automatically or through manual configuration. Thefollowing part describes how an IP phone acquires an IP address automatically.Note:The following part only describes the common way for an IP phone to acquire an IPaddress. The detailed process may vary by manufacture. Refer to the correspondinguser manual for the detailed information.
