Will the EPG600 work behind a PBX? EnGenius Updated April 03, 2017 15:46 Follow Yes, the RJ11 ports on the EPG600 will work with analog ports from a PBX. http://community.engeniustech.com/topic/735-will-the-epg600-work-behind-a-pbx/ Related articles There is no “Under Approval” button on EWS5912FP Controller GUI. Will using EnTalk to make PSTN calls make the phone line unusable to other users? How to use PBX options that have been enabled on the handset? Can you mount 2 ENH500/ENH202 (facing opposite direction) on the same pole? How far apart should they be? What do the Trunk1 to Trunk8 under PVID of my EWS5912FP switch refer to? Comments 0 comments Please sign in to leave a comment.