Asterisk, BLINDTRANSFER

Hello, everyone.

I’ve got asterisk 1.6.2.16. There are two extensions: 101 and 102. 102 has divert to another number. 101 is calling 102 and call is being diverted.

The question is - how to determine which channel made the transfer? Call is being processed at Local channel and BLINDTRANSFER variable is always empty. May be I’m doing something wrong?

Thank you.