[cisco-voip] Softphone versus Hardphone Vlan Constraint

Ryan Ratliff rratliff at cisco.com
Fri Sep 23 10:22:51 EDT 2005


While that would be a neat feature you'd have to have a NIC with the  
ability to handle the dot1q tagged packets.  I'm sure this would  
prevent most laptop users from using the software.

-Ryan

On Sep 23, 2005, at 10:16 AM, Vincent De Keyzer wrote:

So the softphones are in the data vlan?

I would have imagined that they would make the PC behave like a true IP
phone: have a trunk to the switch, listen to the CDP advertisement of  
the
voice VLAN, and tag the outgoing voice packets with it (leaving the data
packets untagged)...

Now wouldn't that be nice?

Vincent



> -----Original Message-----
> From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-
> bounces at puck.nether.net] On Behalf Of Ryan Ratliff
> Sent: vendredi 23 septembre 2005 15:28
> To: Nasser Khwaja
> Cc: cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] Softphone versus Hardphone Vlan Constraint
>
> If you are routing between the data and voice vlans then there should
> be no issue.  If you are not routing between the two then that is a
> problem.
>
> -Ryan
>
> On Sep 23, 2005, at 7:40 AM, Nasser Khwaja wrote:
>
> Hi,
> I already have Cisco IP Hard phones working within a VOICE VLAN
> together with the CallManager, and the PCs in a DATA VLAN.
> Now I need to install Softphones on PCs; and since these PCs are in
> the Data Vlan subnet, my question is How do my Cisco Softphones get
> the dialtone from the CallManager which is in a separate Voice Vlan
> subnet?
>
> Your response will be appreciated.
> Thanks
> -Tennisman
>
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