it seems the only way to access telnet on my modem is by tr-069 as confirmed by this post from huawei i know the parameters of tr-069 and i can change them with modified backupfile, how can i tr-069 to my router
If this is still about the HG630v2, it's not supported, in this sub forum too.
in general do you know how to tr-069 to router
does it matter if I do ?
TR-069 is a "Don't call us. We'll call you" protocol. A session is always initialized by the CPE. Configuration of the ACS URL is outside scope. See https://en.wikipedia.org/wiki/TR-069 for a quick intro.
But this discussion about talking TR-069 to an unsupported device seems completely off-topic. You'll get faster and better answers here: https://google.com