Hello, my workaround disabling "call group" was not optimal for people having multiple VTH. The same is for me since now i configured sip also on mobile (DMSS is not so smart for call notification).
After updating my VTO3211D-P2 firmware to 4.511 i saw a new option in network settings...
Hello i just had same video issue. i FIXED disabling "call group" from VTO, then reconfiguring VTO and VTH. Now i see video when calling from VTO.
Hope this can help. My configuration is VTO3211D-P2 + VTH2621G-WP