Executing [~~s~~@sm_dial:32] Dial("PJSIP/level3-000091c6", "PJSIP/15628062507@beaky-01,600,gb(sm_pre_dial^s^1)U(sm_answer)F(sm_intercept_to_called^s^1)") in new stack

the U(sm_answer) is run when the channel answers

[Sep 19 15:57:56]     -- Executing [s@sm_answer:1] NoOp("PJSIP/igv0509-000091e2", "answer") in new stack
[Sep 19 15:57:56]     -- Executing [s@sm_answer:2] Set("PJSIP/igv0509-000091e2", "MASTER_CHANNEL(sm_call[1][answer_timestamp])=1568923076.614") in new stack
[Sep 19 15:57:56]     -- Executing [s@sm_answer:3] CELGenUserEvent("PJSIP/igv0509-000091e2", "SM_ANSWER,tag='ast' answer_timestamp='1568923076.614' audioreadformat='ulaw' audiowriteformat='ulaw'") in new stack
[Sep 19 15:57:56]     -- Executing [s@sm_answer:4] GosubIf("PJSIP/igv0509-000091e2", "0?confirm") in new stack
[Sep 19 15:57:56]     -- Executing [s@sm_answer:5] Return("PJSIP/igv0509-000091e2", "") in new stack