ATCOM 5520 User Manual page 46

disable the DiffServ, then system will not distinguish the voice and data, all
packets will use the Voice VLAN ID as the tag.
3) Enable VLAN, if set Voice and Data VLAN differentiated as tag differentiated
and enable the DiffServ, then system will distinguish the voice and data and add
the VLAN ID each other.
4) Enable VLAN, if set Voice and Data VLAN differentiated as date untagged, then
the packet of the signal and voice will use the voice VLAN ID as the tag, but the
data packets will not take the VLAN tag.
5) if disable the VLAN, regardless to set the voice and data VLAN differentiated or
not, all packets will not take the VLAN tag; if enable the DiffServ, all packets
will only take the DiffServ value. 6) One must to notice, enable the VLAN ID
check enable that is default, if enable
Must to notice, VLAN ID check Enable feature is default enable, if enable it,
The phone will match the VLAN ID strictly, When others' VLAN ID mismatch
with IP Phone, the packets will discard, Contrarily, the phone will accept the
packets with the distinct VLAN ID.
You must set the IP with static mode when you set VLAN, otherwise can't
obtain the IP in the VLAN and also cannot dial with point to point
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