[Blind-sysadmins] Which program do people recommend for terminal sharing?

Hi, One of the products I support lives on Linux boxes, so I have been exploring the possibility of using something like 'tmux' or 'tmate', for times when it is useful to see what the customer themselves is doing on their box as they do it. So far I have found 'tmate' ok, but 'speak' does seem to like reading out bits of the session from before. reading up from the bottom of the window seems to work ok though. Also, if I create the 'tmate' session on my Mac all is good, but if I connect to someone els's session, VO seems to get very hung up on telling me about light box drawings. Any thoughts on the best solutions for terminal sharing are very much appreciated. Cheers, Jen.