3Com 4210 9-Port Configuration Manual page 109

Table 1-2 Matching relationship between port types and voice devices capable of acquiring IP address
and voice VLAN automatically
Voice VLAN Voice
assignment traffic
mode type
Tagged
voice
traffic
Automatic
Untagge
d voice
traffic
Tagged
voice
traffic
Manual
Untagge
d voice
traffic
IP phones acquiring IP address and voice VLAN through manual configuration can forward only tagged
traffic, so the matching relationship is relatively simple, as shown in
Port type
Access Not supported
Supported
Make sure the default VLAN of the port exists and is not
Trunk
a voice VLAN, and the access port permits the traffic of
the default VLAN.
Supported
Make sure the default VLAN of the port exists and is not
Hybrid
a voice VLAN, and the port permits the traffic of the
default VLAN.
Access
Not supported, because the default VLAN of the port
must be a voice VLAN and the access port is in the voice
Trunk
VLAN. This can be done by adding the port to the voice
VLAN manually.
Hybrid
Access Not supported
Supported
Make sure the default VLAN of the port exists and is not
Trunk
a voice VLAN, and the access port permits the traffic of
the default VLAN and the voice VLAN.
Supported
Make sure the default VLAN of the port exists and is not
Hybrid
a voice VLAN, the port permits the traffic of default
VLAN, and the voice VLAN is in the list of the tagged
VLANs whose traffic is permitted by the access port.
Supported
Access
Make sure the default VLAN of the port is a voice VLAN.
Supported
Trunk
Make sure the default VLAN of the port is a voice VLAN
and the port permits the traffic of the VLAN.
Supported
Make sure the default VLAN of the port is a voice VLAN
Hybrid
and is in the list of untagged VLANs whose traffic is
permitted by the port.
1-5
Supported or not
Table 1-3: