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тАО06-25-2009 04:59 PM
тАО06-25-2009 04:59 PM
4500G and Voice VLAN
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тАО06-26-2009 02:35 PM
тАО06-26-2009 02:35 PM
Re: 4500G and Voice VLAN
The Voice VLAN on 3Com switches is simply a VLAN preconfigured and uses a MAC ACL to recognise specfic VoIP devices i.e. 3Com phones, CISCO Phones etc.
On other vendor switches the VLAN for all your VoIP devices must be created and configured from scratch.
This message was edited by Luckycharms on 6-26-09 @ 2:35 PM
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тАО06-26-2009 04:07 PM
тАО06-26-2009 04:07 PM
Re: 4500G and Voice VLAN
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тАО03-02-2018 02:01 PM
тАО03-02-2018 02:01 PM
Re: 4500G and Voice VLAN
Technically, it is the OUI, (the first 6 digits of the MAC) that is used. All phones from a given manufacturer will have the same OUI. The switch comes with a handful already defined. The list can be expanded by defining additional OUIs to be recognized by using the "voice vlan mac-address" command in the CLI.
The real fun comes in defining the VLAN and port configuration paramters. A port will need different configurations depending on the attached device (another switch / IP phone with pass thru traffic / PBX / etc).
We got it to work (and quite nicely, by the way), but the documentation could be better.