[cisco-voip] Troubleshooting a shared line

[Ryan Ratliff]

CCM traces from all nodes that those phones register to (including the vg224) will show you what device is doing what that triggers the remote in use.

-Ryan

On Mar 19, 2010, at 11:51 AM, Mike King wrote:

We're running 7.1.3.10000-11, and I had a user call in with the following sceneriao.

They have a line extension 2920, that is shared on 4 phones.   2 7941's, 1 7961, and 1 VG224 port (They plug a cordless phone into it)

Recently (for the last month or so) the extension will show in use "the light goes red", but none of them would be on the phone. They also said when the light is red, nobody else can start a call on that extension.  The way they are fixing it has me puzzled.

They say the unplug the 7961 (which has the light being red, so it's not the active call) and plug it back in.  That will make the light clear, and they can use the phones for a while, till the light stays on again.

What I'm looking for, is there a way to trace a DN?  I.E. show which device has the line siezed?  I used to be able to do something like that with my older PBX (It would print out all the phones that had an extension, and what the various calls states the lines were in)

Of course I'll have to wait for it to happen again, and I have a snarky suspicion they aren't really hanging up that cordless phone, even though they are swearing it's off, but I'd like to be able to figure out what "device" has the line seized.

Mike
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