Hi，PHONE PROXY part telephone registration successfulbut some of the telephone to quote the following error,Setting SERVER_CLEAR flag in connPP: Remote phone at 114.217.242.43/52198 requesting CTLSEP2C3ECF77D358.tlv from 192.168.80.250/69 I found can...

I have a ATA-190,use the administrator account login（username admin pwd admin）,Configuration parameters are locked and cannot be modifiedcould you tell me how to unlock? Please help me！ Thank you“The official manual interpretationChanging the phone c...