TP-Link JetStream T2700G-28TQ User Manual page 289

the aging time, the switch will remove this port from voice VLAN. Voice ports are automatically
added into or removed from voice VLAN.
Manual Mode: You need to manually add the port of IP phone to voice VLAN, and then the switch
will assign ACL rules and configure the priority of the packets through learning the source MAC
address of packets and matching OUI address.
In practice, the port voice VLAN mode is configured according to the type of packets sent out from
voice device and the link type of the port. The following table shows the detailed information.
Port Voice Voice
VLAN Mode Stream Type
TAG voice
stream
Automatic Mode
UNTAG voice
stream
TAG voice
stream
Manual Mode
UNTAG voice
stream
Table 12-2 Port voice VLAN mode and voice stream processing mode
Note:
1. If the 802.1X authentication and Guest VLAN are enabled on the ingress port which received
the tagged voice data stream from the IP phone, please assign different VLAN IDs to the
voice VLAN, the port's default VLAN and 802.1X Guest VLAN to guarantee each function's
normal operation.
2. If the voice data stream sent from the IP phone is untagged, please configure the ingress
port's default VLAN as voice VLAN to implement the Voice VLAN function.
Security Mode of Voice VLAN

When voice VLAN is enabled for a port, you can configure its security mode to filter data stream. If
security mode is enabled, the port just forwards voice packets, and discards other packets whose
Link type of the port and processing mode
ACCESS: Not supported.
TRUNK: Supported. The default VLAN of the port cannot be
voice VLAN.
GENERAL: Supported. The default VLAN of the port cannot
be voice VLAN and the egress rule of the access port in the
voice VLAN should be TAG.
ACCESS: Not supported.
TRUNK: Not supported.
GENERAL: Not Supported.
ACCESS: Not supported.
TRUNK：Supported. The default VLAN of the port cannot be
voice VLAN. And the port should belong to the voice VLAN
and the default VLAN.
GENERAL：Supported. The default VLAN of the port cannot
be voice VLAN. The port should be an untagged port in its
default VLAN, and a tagged port in the voice VLAN.
ACCESS: Supported.
TRUNK: Supported. The default VLAN of the port should be
voice VLAN, and the port should belong to the default VLAN.
GENERAL: Supported. The default VLAN of the port should
be voice VLAN and the egress port should be configured as an
untagged port of the voice VLAN.
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