I have a ce1( use e1-r2 signal) and mica modem in 3640. when I use anolog modem dial to 3640, some types anolog modems can connect to 3640, some types will disconnect so fast. what's the matter? If I want to use reverse telnet to configure mica modem, it's hard to know when the next line of mica modem will response the dial in. so I want to shutdown some mica modem, but I cann't find out command. what should I do? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=13096&t=13096 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]