The problem is that I can't get the user access to that information until they can logon which they can't do through the phone. I had them do an ipconfig /release and then /renew after they're signed in and see what DHCP info was and it was all correct. The port config is:

interface FastEthernet1/0/13

switchport access vlan 2

switchport mode access

switchport voice vlan 3

srr-queue bandwidth share 10 10 60 20

srr-queue bandwidth shape 10 0 0 0

mls qos trust device cisco-phone

mls qos trust cos

no mdix auto

auto qos voip cisco-phone

spanning-tree portfast

This shouldn't make a difference, but your missing "switchport priority extend cos 0". Other then hat the switchport config looks good. So if the plug directly it works fine. What model switch are you working with? Try this not sure if it will help, but worth a try.

int faste 1/0/13

switchport trunk encap dot1q

switchport trunk native vlan 2

swtichport voice vlan 3

switchport mode trunk

What does the "switchport priority extend cos 0" do? We're using 3750 POE switches.

Anything on the other end of the phone is considered as a untrusted device and is marked at layer to to cos 0.

On the 3750's the configuration should work with now problems. What version of code are you using on the switch?

(C3725-SPSERVICESK9-M), Version 12.4(2)T

Not very current, but the other hosts and phones have worked for 2 years.

3725 is the IOS for a 3725 router...I was talking about your switches. So your telling me that you have some phones working with the same port config as the ones that don't. Would you by chance have the PC disabled under Call Manager. It is a setting located at device-->Phone-->phone in question--> Product Specific Configuration-->PC Port

Needs to be set to enable Also PC Voice Vlan Access needs to be enabled.

Darn, grabbed the wrong show ver. Sorry about that. The switch is (C3750-I9-M), Version 12.2(25)SE.

We're running CallManager Express and as far as I know there is no way to switch off that port in CME. Plus the port works, just not for the initial login.

You're correct on CME. Sorry Missed that. hmm So can you take a known working phone and plug it up exactly how this one is and see if it experience the problem. Make sure to tell me if it was the same model phone or something different.

They've tried three different 7940s all with the same result.

Did these phones work some where else with no problems?

Yes. The weird thing is that the problem supposedly follows the PC, but also supposedly they're putting a PC on the same phone in the same place that also fails, but works elsewhere. (Isn't working through a third party fun?)

Hi,

I am also facing phone hanging issue and i am using cisco SG550 as core switch and 5 access switch 1 SG300 and netgear 4 swtich GS724 are connected to core switch.

Now suddenly my phones went of down when i checked ping in core switch then its shows 2000 ms.

daily i restart core switch then phone automatically start working. Please help me.