[macro-evolution_exten]
exten => s,1,SetAccount(Evolution)
exten => s,n,Set(SPYGROUP=10001)
exten => s,n,Set(CALLFILENAME=${UNIQUEID})
exten => s,n,Monitor(wav,/recordings_ram0/${CALLFILENAME},m)
exten => s,n,ChanIsAvail(SIP/${ARG1}|js)
exten => s,n,NoOp($Dial Status: ${DIALSTATUS})
exten => s,n,Dial(SIP/ev_${ARG1}|20|otT)
exten => s,n,VoiceMail(${ARG1}@${ARG2})
exten => s,105,Busy()

here is the cli output: 

slk-apbx-02*CLI> dial 121@evolution
    -- Executing Set("OSS/dsp", "SPYGROUP=10001") in new stack
    -- Executing Macro("OSS/dsp", "evolution_exten|121|evolution") in new stack
    -- Executing SetAccount("OSS/dsp", "Evolution") in new stack
    -- Executing Set("OSS/dsp", "SPYGROUP=10001") in new stack
    -- Executing Set("OSS/dsp", "CALLFILENAME=1176312890.2325") in new stack
    -- Executing Monitor("OSS/dsp", "wav|/recordings_ram0/1176312890.2325|m") in new stack
    -- Executing ChanIsAvail("OSS/dsp", "SIP/121|js") in new stack
  == Spawn extension (macro-evolution_exten, s, 5) exited non-zero on 'OSS/dsp' in macro 'evolution_exten'
  == Spawn extension (macro-evolution_exten, s, 5) exited non-zero on 'OSS/dsp'