Power down Lenovo T61 and it shuts off voip phone

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We have a perplexing issue with our T61 laptops when connected to a
Mitel 5220 voip phone.  When powering down the laptop it also shuts
off the phone.  Other Tseries laptops connected to the 5220 work
properly, the T61 connected to a Mitel 5330 works well.  We have
checked network card settings etc but cannot find a resolution to this
issue.  Any ideas will be appreciated.

Re: Power down Lenovo T61 and it shuts off voip phone
On Apr 10, 8:53=A0am, mcauleyglo...@gmail.com wrote:
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Wild guess - but is there anyway that your laptop is sending some kind
of a signal to the switch that it is powering off and the PoE port is
shutting down because of that?

Re: Power down Lenovo T61 and it shuts off voip phone
mcauleygloria@gmail.com wrote:


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Could I ask what LAN switches you are using?  we have experienced the same
problem using Lenovo x61 laptops and M57 desktops. connected to a Mitel
5220 single mode phone, and then to a Cisco WS-X6148-RJ45v module using
Power over Ethernet.
we have found that the issue happens when the PC is connected to the mains
power but shut down. the phone will then loose power every 10 seconds or
so. however if you remove the mains power from the laptop, or boot the
laptop up the phone is stable.
one work around we have used is to boot the laptop up before docking it.
we have found that using a later model of phone or cisco LAN module also
seems to stop the problem happening.
also if you use a mains adaptor to power the phone and not POE it seem to
work ok.
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