asterisk users - Nov 2009 - Change the FROM filed username and From Calling id in asterisk

Hello Guys,


Hope everyone is fine, I have one issue coming in asterisk , What i am doing
is i am generating a callback if some one calls at a specif access number on
asterisk,

Asterisk sends a busy signal to the calling party that he received a request
from party and then sends the call back to the person from where asterisk
received a request but in From field as you can see below astrisk is sending
the calling ID as "asterisk" and username same ,

What i want is that it should forward some CLI in From Field ,


I have done my best effort but still not resolved i am adding a callerid in
script still same please help me if some one can


 IP1:5060 -> IP2:5060
  INVITE sip:0423347871787 at IP2:5060 SIP/2.0..Via: SIP/2.0/UDP
IP1:5060;branch=z9hG4bK-966123148--16781
  75694--693700493-4-..Via: SIP/2.0/UDP
IP1:5065;branch=z9hG4bK00749b6d;rport..Call-Id: 4f8a33b207cd65f060b083b57
  804dac8 at IP1..To <804dac8 at 117.20.20.234..To>: <sip:3347871787 at
IP1>..

*From: "asterisk"<sip:asterisk at IP1:5065>;tag=as0cae0b*
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