__TRANSFER_CONTEXT and asterisk 1.2.15

Hello !

Sorry for my english !

Have you got a special information on __TRANSFER_CONTEXT in a configuration asterisk 1.2.15

the attended transfer don’t work in this version when the call is in a queue!!!

Thanks for help !!!

If so, any particular reason not to upgrade? Current 1.2 release is 1.2.17.