I've gone back though the forums and can find similar posts but nothing specifically dealing with this issue. It may be that this just won't work but I'd see if any other members have dealt with a similar issue. This is using 3CX version 11. I've recently put the ring my mobile option onto one extension. This extension is part of a ring group. Calls to the extensions in the ring group display the outside callers name/number correctly. Calls to the ring group do ring the mobile as they should. However... the callers Caller ID is not passed to the mobile, only the assigned number of the outgoing phone line. Now...the outgoing line is VoIP, and they do allow the caller ID number to be changed as I have verified by changing an extension number to display/i], and it is passed onto the called party, rather than the assigned VoIP line number. There are the bare minimum options in the trunk settings for the VoIP line, just enough to register, and basic settings in the ring group and extension. There is no ring group name being added. It is calls to the ring group that I'm concerned about, not calls directly to the extension number, with the ring my mobile option. Has anyone had any success on getting this sort of thing to work, or am I wasting my time?