I have sseen response to question re unlocking Huawei moden that it is not locked but the VOIP feature is encrypted. However, I am unable to change any setting on my modem and so conclude that it must be locked.
Can you please advise how to unlock it.
Lots of people reset their wifi router and then have to login to router and set their username and password and make any other changes they may want.
Have you tried resetting to factory settings?
First you need to be the super or root user to change the settings. Follow the instructions below to enable it.
Once you have executed this steps well. you shall be able to modify the settings. Hope this helps!