I found that the official firmware for goip -1 (http://dbltek.com/update/GHSFVT-1.1-67-5.pkg) contains a link to a porn site
the link is in the file /usr/etc/syscfg.default (SIP_RC4_KEY=“etoall.net”)
in the web interface you can find this link in the section: Advance VoIP - Signaling Encryption - RC4 - RC4 Encryption Key
I do not know how this link is used by hardware and software
maybe this is just a joke from Chinese manufacturers
