TC: You were right on the money. The new firmware L-34 fixed my problem with the Channel Bank. Now the lines are properly closed and not hanging up the lines. One of these days I should read more about the 750. I saw some parameters for "network on-hook/off-hook + test" that I don't even know what they do. Thank you so much. Regards, Uriel -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20030413/32d0eea0/attachment.htm