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Beginner

Moving IP phone to new physcial location does NOT work

I have a non-Cisco ip phone that works.  After making three more new wall ports Hot with POE and VOIP, I moved the working ip phone to one of the three new switch ports.  The phone powers up and displays a crc error.  The Cisco 2960S port goes green, but the phone does not work.

This is a non-Cisco PBX with proprietary DHCP...

Any ideas?

Everyone's tags (7)
3 REPLIES 3
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Participant

Moving IP phone to new physcial location does NOT work

Possibly cabling issue.

Try this command

=test cable tdr int

And then show cable tdr int

From the out put see if pair c is normal or open. If its open the possible a cabling issue.

It suppose to be normal.

Please rate if this helps

thanks

Highlighted
Beginner

Moving IP phone to new physcial location does NOT work

I get the above symptom plugging directly into the 2960S switch.

The port where i plugged into the phone was configured like this:

switchport trunk allowed vlan 1,2

switchport mode trunk

switchport nonegotiate

priority-queue out

mls qos trust cos

spanning-tree portfast trunk

spanning-tree bpduguard enable

switchport trunk allowed vlan 1,2

switchport mode trunk

switchport nonegotiate

priority-queue out

mls qos trust cos

I then changed it to the below, thinking that the portfast or bpduguard could interrupt the phone registration??

switchport trunk allowed vlan 1,2
switchport mode trunk
switchport nonegotiate
priority-queue out
mls qos trust cos

Any thoughts?

Cisco IOS Software, C2960S Software (C2960S-UNIVERSALK9-M), Version 12.2(55)SE3, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Thu 05-May-11 16:56 by prod_rel_team
Image text-base: 0x00003000, data-base: 0x01B00000

ROM: Bootstrap program is Alpha board boot loader
BOOTLDR: C2960S Boot Loader (C2960S-HBOOT-M) Version 12.2(53r)SE, RELEASE SOFTWARE (fc3)

GVS12SW06GBPOE uptime is 15 weeks, 5 days, 1 hour, 33 minutes
System returned to ROM by power-on
System restarted at 06:56:07 cst Fri Jun 8 2012
System image file is "flash:/c2960s-universalk9-mz.122-55.SE3/c2960s-universalk9-mz.122-55.SE3.bin"

Highlighted
Participant

Moving IP phone to new physcial location does NOT work

try this

switchport trunk native vlan XXX (your data vlan)

switchport trunk allowed vlan XXX,XXX

switchport mode trunk

switchport voice vlan XXX (your voice vlan)

srr-queue bandwidth share 1 30 35 5

priority-queue out

mls qos trust device cisco-phone

mls qos trust cos

auto qos voip cisco-phone

spanning-tree portfast

spanning-tree bpduguard enable

service-policy input AUTOQOS-SRND4-CISCOPHONE-POLICY

hope this will help.

thanks