Huawei IP Phone eSpace
7810&7820&7830&7850&7870&7803X
Administrator Guide
4 Troubleshooting
Issue 01 (2011-12-31)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
110
Change the IP phone codec. Generally, the default codec of an IP phone is G.711A. If the
network quality is low, you can set the codec to G.729 or G.723.
4.2.10 Failed to Upgrade an IP Phone
Symptom
After an IP phone is upgraded, its firmware version does not change.
Cause
The target firmware version is the same as the source firmware version.
The target firmware version does not match the phone model.
The source firmware or target firmware is protected by software.
Troubleshooting
Select a correct version to upgrade. The version formats for different IP phone models are as
follows:
For eSpace 7870, the version format is 38.x.x.x.
For eSpace 7850, the version format is 2.x.x.x.
For eSpace 7830, the version format is 6.x.x.x.
For eSpace 7820, the version format is 7.x.x.x.
For eSpace 7810, the version format is 9.x.x.x.