We have an asterisk version v188.8.131.52 with a TDM400 board (2 FXS and 2 FXO). We want to do a transfer “blind” and “attended” from a line external connected to one FXO. We have made configuration, and transfers from internal lines (FXS) work fine but from (FXO) not.
We have made 2 test, one work fine from FXS and the other form FXO no.
Test 1, work fine:
1) A (FXS-1) — call —-> B(FXS-2) 2) B (FXS-2) press #1 (blind transfer) after that press dtmf 9 (to dial FXO-1). 3) B hungup. 4) A —- connected to —- linea externa FXO-1.
Test 2, did’t work.
1) A (FXS-1) — call —-> B(FX0-1) 2) B (FX0-1) digita #1 (blind transfer), listen tone and when press any dtm the call hungup.
Bellow you can see, log when we try a blind transfer from FXO.