asterisk users - Oct 2007 - Problem in placing Call with Asterisk (Got SIP response 500 "Internal Server Error")

Hi guys this is my Ist mail on this group, I am running asterisk with CentOS
4.4 machine. When i initiate a call then error message apears. calling
Number is provided to Asterisk by the php application. Error message appears
like this

Got SIP response 500 "Internal Server Error" back from 209.47.92.xxxx
[Oct 10 23:55:20] WARNING[19289]: pbx.c:4976 ast_pbx_outgoing_exten:
SIP/verizon1-00ad5ba0 already has a call record??
       > Channel SIP/verizon1-00ad5ba0 was never answered

plz help me in resolving this issue. waiting for ur response.

-- 
Syed Jamshed Zaidi (Jamy-Virus)
Linux Admin/Programmer @ Naseeb Networks
0321-4087492
"Shoot for the moon. Even if you miss, you'll land among the
stars"
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