It all depends on your system (VoIP, phone, and switch).  Our call center could 
only afford lower-end Polycom phones, so the internal switch is 100 Mbps.  Our 
database team finds this frustrating because it throttles what should have been 
a Gb connection.  However, the phones that support Gb cost 3 times as much.

Rebooting these phones does not break the connection to the PC.  However, on 
occasions, the phone will "hang".  The phone lights up big-time (all the LEDs 
of all colors are steadily lit), and that situation does cut off the PC 
connection.  (Our newer Polycoms have not hung this way - yet.)  On the other 
hand, we frequently do a soft phone reboot to clear up some VoIP issues, and 
that does not affect the PC connection.

But again, it all depends on your VoIP system, your phone, and your switch.  
Check these things out when shopping for the VoIP system!
--
richard

From: [email protected] [mailto:[email protected]] On 
Behalf Of Melvin Backus
Sent: Wednesday, March 04, 2015 6:56 AM
To: [email protected]
Subject: RE: [NTSysADM] vlan on single port

Yes, it's possible.  I don't recommend it however.  There are a couple of 
common issues they will run into if they piggy back things.

When the phone resets (for any reason) you'll lose network connectivity on the 
PC.  In some cases we see it actually cause a PC reboot which I've yet to 
understand, but it can be reproduced.

On some (most?) phone sets, the network port is 100MB instead of GB, so you may 
end up restricting network throughput by doing this.  Some phones have GB 
ports, normally the higher end ones, and that will obviously be equipment 
specific, but it's something to watch for.



--
There are 10 kinds of people in the world...
         those who understand binary and those who don't.

From: [email protected]<mailto:[email protected]> 
[mailto:[email protected]] On Behalf Of J- P
Sent: Tuesday, March 3, 2015 6:11 PM
To: [email protected]<mailto:[email protected]>
Subject: [NTSysADM] vlan on single port

Hi all
i have a client that is setting up a new office with voip and naturally I'm 
recomending seperate drops and a seperate switch (small office < 30 users) 
,however , as most clients, they dont want spend anymore money than they have 
to, so they want to piggy back the computers to the phones ethernet port . Is 
it possible to vlan off the same drop/port ?



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