Administrator’s Guide for SIP-T23 & T23P & T23G IP Phones3583. Enter the desired time interval in the Packet Interval (1~3600s) field.4. Click Confirm to accept the change.A dialog box pops up to prompt that settings will take effect after a reboot.5. Click OK to reboot the phone.To configure CDP feature via phone user interface:1. Press Menu->Settings->Advanced Settings (default password: admin)->Network->CDP->CDP Status.2. Press or , or the Switch soft key to select the desired value from the CDPStatus field.3. Enter the priority value (1-3600s) in the Packet Interval field.4. Press the Save soft key to accept the changeVLAN (Virtual Local Area Network) is used to logically divide a physical network intoseveral broadcast domains. VLAN membership can be configured through softwareinstead of physically relocating devices or connections. Grouping devices with acommon set of requirements regardless of their physical location can greatly simplifynetwork design. VLANs can address issues such as scalability, security and networkmanagement.The purpose of VLAN configurations on the IP phone is to insert tag with VLANinformation to the packets generated by the IP phone. When VLAN is properlyconfigured for the ports (Internet port and PC port) on the IP phone, the IP phone will tagall packets from these ports with the VLAN ID. The switch receives and forwards thetagged packets to the corresponding VLAN according to the VLAN ID in the tag asdescribed in IEEE Std 802.3.
