3Com 4500G Family Configuration Manual page 171

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# Display the current voice VLAN state.
<DeviceA> display voice vlan state
Maximum of Voice VLANs: 8
Current Voice VLANs: 1
Voice VLAN security mode: Security
Voice VLAN aging time: 1440 minutes
Voice VLAN enabled port and its mode:
PORT
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GigabitEthernet1/0/1
Philips/NEC phone
Polycom phone
3com phone
VLAN MODE
2 MANUAL
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