Hello, friend!
Based on the problem description:
Root cause:
During the release of the old IP address, when the new DHCP IP address is reported, the new IP address is the same as the original IP address and the SIP interface is not reset.
Solution:
When a new DHCP IP address is reported, the interface is in the Shutdown state and the new IP address is the same as the old IP address. Therefore, the SIP interface needs to be reset. This issue has been resolved in SPH212.
You are advised to upgrade the device to the latest version. You can contact the device provider to obtain the latest version of the device software.
Contact local Huawei technical support engineers.
Thanks!