I have 3 ramals, 3083, 3062 and 5111.

I call 3083 from 3062. Them i transfer from 3083 to 5111 and turn off 3083, so 3062 and 5111 are connected.
Them from 5111 i try to transfer to 3083 and receive a busy message.

    -- Started music on hold, class 'default', on channel 'Local/5111@padrao-7c24,2'
    -- Playing 'pbx-transfer' (language 'en')
    -- Executing Macro("Local/3083@padrao-0e56,2", "dialramal|3083|IAX2/3083&SIP/3083") in new stack
    -- Executing SetGroup("Local/3083@padrao-0e56,2", "3083") in new stack
    -- Executing Set("Local/3083@padrao-0e56,2", "OPT=wWtT") in new stack
    -- Executing GetGroupCount("Local/3083@padrao-0e56,2", "") in new stack
    -- Executing GotoIf("Local/3083@padrao-0e56,2", "1?bsy") in new stack
    -- Goto (macro-dialramal,s,12)
    -- Executing Goto("Local/3083@padrao-0e56,2", "s-BUSY|1") in new stack
    -- Goto (macro-dialramal,s-BUSY,1)
    -- Executing MailboxExists("Local/3083@padrao-0e56,2", "3083") in new stack
    -- Executing VoiceMail("Local/3083@padrao-0e56,2", "b3083") in new stack
    -- Playing 'vm-theperson' (language 'en')
    -- UniCall/66-1 answered IAX2/3692-1
    -- Playing 'digits/3' (language 'en')
    -- Playing 'digits/0' (language 'en')
    -- Playing 'digits/8' (language 'en')
    -- Playing 'digits/3' (language 'en')
    -- Playing 'vm-isonphone' (language 'en')