Why would everyone of my extensions be able to call a certain extension number such as (3003) but when a particular user calls that number FS tells that user (3006) that 3003 is busy?

2013-04-02 08:18:56.104087 [DEBUG] sofia.c:5603 Channel sofia/internal/sip:3003@10.25.190.8:1024 entering state [calling][0]
2013-04-02 08:18:56.254094 [DEBUG] sofia.c:5603 Channel sofia/internal/sip:3003@10.25.190.8:1024 entering state [terminated][486]
2013-04-02 08:18:56.254094 [DEBUG] switch_channel.c:2994 (sofia/internal/sip:3003@10.25.190.8:1024) Callstate Change RINGING -> HANGUP
2013-04-02 08:18:56.254094 [NOTICE] sofia.c:6387 Hangup sofia/internal/sip:3003@10.25.190.8:1024 [CS_CONSUME_MEDIA] [USER_BUSY]
2013-04-02 08:18:56.254094 [DEBUG] switch_core_state_machine.c:415 (sofia/internal/sip:3003@10.25.190.8:1024) Running State Change CS_HANGUP
2013-04-02 08:18:56.254094 [DEBUG] switch_channel.c:3017 Send signal sofia/internal/sip:3003@10.25.190.8:1024 [KILL]
2013-04-02 08:18:56.254094 [DEBUG] switch_core_session.c:1283 Send signal sofia/internal/sip:3003@10.25.190.8:1024 [BREAK]
2013-04-02 08:18:56.254094 [DEBUG] switch_core_state_machine.c:667 (sofia/internal/sip:3003@10.25.190.8:1024) State HANGUP
2013-04-02 08:18:56.254094 [DEBUG] mod_sofia.c:503 Channel sofia/internal/sip:3003@10.25.190.8:1024 hanging up, cause: USER_BUSY
2013-04-02 08:18:56.274104 [DEBUG] switch_ivr_originate.c:3531 Originate Resulted in Error Cause: 17 [USER_BUSY]
2013-04-02 08:18:56.274104 [NOTICE] switch_ivr_originate.c:2608 Cannot create outgoing channel of type [user] cause: [USER_BUSY]
2013-04-02 08:18:56.274104 [DEBUG] switch_ivr_originate.c:3531 Originate Resulted in Error Cause: 17 [USER_BUSY]
2013-04-02 08:18:56.274104 [INFO] mod_dptools.c:3052 Originate Failed.  Cause: USER_BUSY
EXECUTE sofia/internal/3006@pbx.bryantschools.org answer()


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Blakelund Priddy
Network & Systems Engineer
Bryant Public School District
Bryant, Arkansas 72022
http://www.bryantschools.org
p 501-653-5038
f 501-847-5656