Allied Telesis AT-2911GP/SXLC, AT-2911GP/LXLC, AT-2911GP/SXSC, AT-2911GP/LXSC manual

AT-2911GP Gigabit Fiber Ethernet PoE+ Adapters Installation and User’s Guide

Using VLAN-

Capable VoIP

Phones

Using VLAN-

Incapable VoIP

Phones

Other Combinations

Some VoIP phones are capable of VLAN tagging. Config 1 and Config 2 are using VLAN-capable VoIP phones. If your VoIP phone is VLAN capable, assigns the VLAN ID 150 to a VoIP phone setting. Voice frames get the VLAN tagged at the phone, are sent to the copper port, and transmitted to the switch through the fiber port. The voice frames are unchanged through the fiber port.

You can assign a VLAN ID to the fiber port; however, when voice frames are tagged at the VoIP phone, do not assign a VLAN ID to the copper port.

Config 3 and Config 4 are using non VLAN-capable phones. When the VoIP phone is not capable of VLAN tagging, you can assign the VLAN ID 150 to the copper port. Voice frames from the VoIP phone get tagged when they arrive at the copper port, are sent to the switch through the fiber port. The voice frames are unchanged through the fiber port.

You can assign a VLAN ID only to the fiber port as with Config 5 in Table 3 on page 77. In addition, you can leave the fiber port, copper port, and VoIP phone untagged as with Config 6.

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