So I've been playing with the SIP Intercom trying to get it to stop locking up to no avail when calling out, but in my endeavors, found some interesting information.
The OT7 SIP Intercom requires H.264 video but the camera support for OT7 does NOT support H.264 for cameras. Interesting how part of the system supports this latest technology and another part, seemingly related does not.
So moving on, I placed some calls come into the OT7 and after a minute or so, the OT7 will pop the Leviton boot logo and will show it is restarting yet during the entire process, audio from the call will continue and once the OT7 shows the normal display, the OT7 no longer shows it is in a call, even though it stayed and is still connected with audio from the original call still ongoing. After a minute, the OT7 will again pop the Leviton boot screen, audio still going, repeat, repeat....
1) Wish camera display would support H.264 and not just MJPEG
2) Wish intercom worked properly without lockup and random reboots depending on how intercom call was started
3) Wish that OT7 could initiate a two-way call to another OT7, as one-way means, call OT7-B from OT7-A, say message. Say "Over" since it's more like your using a walkie talkie, then person at OT7-B presses button to call back OT7-A, says one-way message, then "Over". Of course, if you've used a CB radio instead of walkie talkie, you could say "Go ahead Good Buddy" "and "Come back Bandit".
4) Wish the OT7 would accept direct IP calls without need of registration which will allow non-registered devices to also reach the OT7 for voice interaction