[asterisk-dev] how to support three way call with other IPPBX ?

[lvsha]

Hi all

         Asterisk version 1.4.24

         Asterisk configure one SIP trunk for external IPPBX, IPPBX have two
analog phone , ext1 and ext2 , asterisk have one sip user ext3 , below is
call flow 

 

         1. Ext3 call ext1 , ext1 answer 
         2. ext1 want to invite ext2 join session

         3. ext1 presses flash to place call1 on hold and receive dial tone 

         4. ext1 call to ext2 

         5. ext1 presses flash to bridge call1

         6. now asterisk send notify 481 , call leg not exist 

 

         I check asterisk function hand_request_refer and found that
function local_attended_transfer can not find the session , how can I
support the feature ????

 

Thanks & regards

 

Scott.lv 

 

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