atttended transfer:

    -- Started music on hold, class 'default', on SIP/1002-0327
    -- Playing 'pbx-transfer' (language 'en')
Jun  6 16:21:56 WARNING[17411]: channel.c:2088 ast_request: No channel type registered for 'Local'
Jun  6 16:21:56 NOTICE[17411]: channel.c:1990 __ast_request_and_dial: Unable to request channel Local/1003@outgoing/n
Jun  6 16:21:56 WARNING[17411]: res_features.c:790 builtin_atxfer: Unable to create channel Local/1003@outgoing/n do you have chan_local?
    -- Stopped music on hold on SIP/1002-0327
    -- Playing 'pbx-invalid' (language 'en')
  == Spawn extension (outgoing, 1000, 1) exited non-zero on 'SIP/1002-0327'


blind transfer:

    -- Started music on hold, class 'default', on SIP/1002-721d
    -- Playing 'pbx-transfer' (language 'en')
    -- Stopped music on hold on SIP/1002-721d
    -- Executing Dial("SIP/1002-721d", "SIP/1003|60|TWtwC") in new stack
    -- Called 1003
    -- SIP/1003-fdd1 is ringing