From: Hoyle, Anthony (AL) (ALHoyle@dow.com)
Date: Fri Dec 12 2003 - 08:51:02 GMT-3
I am sure you have to have specific line cards with different voltage parameters. If the phones are coming on, do you have DHCP configured
Correctly? If so are the ports set up as trunks, one vlan for the pc, and the other for the phone to download it's image etc... -I guess depending on the phone though :) My workaround is to add the phones , IP addresses and the phone numbers in call manager (that would be ridiculous for a handful of IP phones..) -If your phones are getting IP addresses from DHCP and see if it works that way.
Now about the non-cisco switches, I haven't seen it, so anyone out there shed light on this if you can.. I also remember the only other weird thing is the phones use the skinny protocol to talk to each other, but that may have changed /w new phones, but this is probably irrelevant to your problem.
I would think in theory if you had a vendor switch that support dot1q trunking, and had the right amount of line power I couldn't see an issue.(theoretically) oh yeah by the way, don't be alarmed if you only get one ping response back (from the switch you are on or gateway router) that is normal*
Q:In addition to all that here is another question for the group, I see dot1q all the time, can you use ISL encapsulation /w IP phones?
Anthony Hoyle
P.s What kind of phone is it..7960?
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of George Kadeishvili
Sent: Friday, December 12, 2003 6:12 AM
To: ccielab@groupstudy.com
Subject: OT: cisco ip phones
Can I connect cisco IP phones to non-cisco switches? that is, switches without 802.1q/802.1p support? I've tried, but it does not work. Phones will not see Call Manager. Also with cisco switch, it does not work, before you configure voice vlan. Is there any way for phones to communicate wih call manager over different kinds of networks, like hubs, other wendor switches, adsl links, etc?
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