Nefsis is capable of sharing video at resolutions up to 1080p. Please see this section in our Online User Guide for information on changing individual video resolution within a Nefsis conference: https://www.nefsis.com/manual/cc-video-resolution.html. Maximum video resolution can be configured on a per-conference basis by the conference owner. In some cases, the Nefsis client will determine that the system is not capable of video capture at a higher resolutions and it will disable those higher resolutions so that the user's conference experience is not degraded.We do not currently provide SIP integration in Nefsis, but this is a planned feature. Look for an announcement regarding this capability in the future.