eSpace 7800&7900 IP Phone
Troubleshooting Cases
2 Troubleshooting Cases
Issue 01 (2013-12-26)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
15
Symptom
eSpace 7900 series
The message "IP address conflict" and the icon
(in the status bar) are displayed on
an IP phone's screen.
eSpace 7800 series
The message "IP conflict" is displayed on an IP phone's screen.
Possible Causes and Solutions
Possible Cause
How to Resolve
(In static mode) The IP address
set manually for the IP phone
conflicts with the IP address of
another device.
Set the IP address of the IP phone to an unused one.
Change the IP address of the conflicting device.
(In dynamic mode) The IP
address that the IP phone
dynamically obtains is used by
another device.
Restart the IP phone and enable the IP phone to obtain
an IP address again.
Change the IP address of the conflicting device.
2.2.4 Failed to Obtain an IP Address in DHCP Mode
Applicable Models
eSpace 7900 series
Applicable Versions
All versions
Symptom
The mode for an IP phone to obtain an IP address has been set to DHCP. After the IP phone is
powered on and its network cable is connected, the network status displayed on its LCD
screen indicates that it fails to obtain an IP address.
Possible Causes and Solutions
Possible Cause
How to Resolve
802.1x authentication is
configured on the switch's
port connected to the IP
phone, but is not configured
or is incorrectly configured
on the IP phone.
If 802.1x authentication is configured on the switch, also
configure 802.1x authentication on the IP phone.
Specifically, on the login screen, choose
More
>
Network
>
Network Access
>
802.1x
, enable 802.1x
authentication, and correctly configure the user name and
password.
The VLAN function is
configured on the switch's
If the VLAN function is configured on the switch, also
configure the VLAN function on the IP phone. Specifically,
