Unable to make conference

I am trying to make conference calls through the ASterisk server, but i am facing problems.
the error shows

– Executing [123@tutorial:1] Goto(“SIP/1000-098cacc0”, “conf|1”) in new stack
– Goto (tutorial,conf,1)
– Executing [conf@tutorial:1] Set(“SIP/1000-098cacc0”, “MEETME_RECORDINGFILE=/tmp/Tutorial-”) in new stack
[Nov 20 11:33:31] WARNING[7027]: pbx.c:1832 pbx_extension_helper: No application ‘Meetme’ for extension (tutorial, conf, 2)
== Spawn extension (tutorial, conf, 2) exited non-zero on ‘SIP/1000-098cacc0’
– Saved useragent “gp2266 0.35.011” for peer 1000
– Saved useragent “X-Lite release 1105d” for peer 2000

my configuration files are as below…

  1. meetme.conf …
    conf => 123,1111,2222

exten => 123,1,Goto(conf,1)
exten => conf,1,Set(MEETME_RECORDINGFILE=/tmp/Tutorial-${TIMESTAMP})
exten => conf,2,Meetme(123|rc)
exten => conf,3,Hangup()

What would be the problem…
On the phone i am getting 603 Declined

you probably didn’t actually compile the MeetMe application when you built asterisk. The make will only include the MeetMe application if a zaptel device is detected. If you don’t have any zap hardware, you will still need to compile the zaptel library so you can install the ztdummy driver.

Once you compile and install zaptel, make clean, make, make install on asterisk. If this was the problem your dialplan should magically start working.