Hi, I'm using Asterisk version (Asterisk CVS-05/30/04-16:28:04) on Debian Woody. Sometimes I get this warning message: Jun 14 13:32:41 WARNING[10251]: chan_zap.c:5044 do_monitor: select return -1: Bad file descriptor When that is happening, Asterisk gets slow and close all remote active connections (asterisk -vvvcr). VoIP call alse gets bad at this time. That message appears many times, like if Asterisk were in loop. I've downloaded the version from the CVS (cvs checkout -r 1-0_stable). And I'm not using any monitor application.. Connected to this server, I have a Zhone (16 FXS extensions and 8 FXO lines) and a T100P. I'm also using the last CVS version for Zaptel and Libpri. Did anybody get the same message? How can I fix that? regards Oz