[asterisk-users] Setting outgoing CALLERID without changing CDR(src)

[Carlos Chavez]

     I thought I had found and answer to this question by using 
CALLERID(ani) but it seems that only works on versions prior to 12.  On 
Asterisk 13 setting CALLERID(num) before dialing to an external trunk 
always changes CDR(src) to the number you set and the original extension 
number that dialed is lost.  How are you handling this?  Am I forced to 
use a custom field to keep the original caller number?  My billing 
software uses the src field to get the extension that dialed the call.  
Any tips?

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Telecomunicaciones Abiertas de México S.A. de C.V.
Carlos Chávez
+52 (55)8116-9161