[Asterisk-Users] MeetMe ERROR "Unable to dup channel"

[sylvain garcia]

I would us Meetme for conferance SIP-->SIP fist.

my Meetme.conf:

[rooms]
conf => 9999


my extensions.conf:

exten => 9999,1,MeetMe(9999)


But :

  == Parsing '/etc/asterisk/meetme.conf': Found
Jun 16 10:33:22 WARNING[12100]: chan_zap.c:916 zt_open: Unable to open
'/dev/zap/pseudo': No such file or directory
Jun 16 10:33:22 ERROR[12100]: chan_zap.c:6969 chandup: Unable to dup
channel: No such file or directory
Jun 16 10:33:22 WARNING[12100]: app_meetme.c:227 build_conf: Unable to
open pseudo channel - trying device
Jun 16 10:33:22 WARNING[12100]: app_meetme.c:230 build_conf: Unable to
open pseudo device
    -- Playing 'conf-invalid' (language 'en')


I don't unederstand because i don't use zap channel.