Connected to Asterisk 11.2.0 currently running on occludus (pid = 2476)
  == Using SIP RTP CoS mark 5
    -- Executing [07852??????@from-internal:1] Log("SIP/fritzbox-00000000", "NOTICE,making external call to 07852??????") in new stack
[Feb 11 16:15:07] NOTICE[2504][C-00000000]: Ext. 07852??????:1 @ from-internal: making external call to 07852??????
    -- Executing [07852??????@from-internal:2] Dial("SIP/fritzbox-00000000", "DAHDI/g1/07852??????,0,r") in new stack
    -- Called DAHDI/g1/07852??????
[Feb 11 16:15:07] WARNING[2504][C-00000000]: app_dial.c:2642 dial_exec_full: Invalid timeout specified: '0'. Setting timeout to infinite
[Feb 11 16:15:23] DTMF[2504][C-00000000]: channel.c:4164 __ast_read: DTMF begin '1' received on DAHDI/1-1
[Feb 11 16:15:23] DTMF[2504][C-00000000]: channel.c:4175 __ast_read: DTMF begin passthrough '1' on DAHDI/1-1
[Feb 11 16:15:23] DTMF[2504][C-00000000]: channel.c:4078 __ast_read: DTMF end '1' received on DAHDI/1-1, duration 267 ms
[Feb 11 16:15:23] DTMF[2504][C-00000000]: channel.c:4119 __ast_read: DTMF end accepted with begin '1' on DAHDI/1-1
[Feb 11 16:15:23] DTMF[2504][C-00000000]: channel.c:4148 __ast_read: DTMF end passthrough '1' on DAHDI/1-1
[Feb 11 16:15:24] DTMF[2504][C-00000000]: channel.c:4164 __ast_read: DTMF begin '2' received on DAHDI/1-1
[Feb 11 16:15:24] DTMF[2504][C-00000000]: channel.c:4175 __ast_read: DTMF begin passthrough '2' on DAHDI/1-1
[Feb 11 16:15:24] DTMF[2504][C-00000000]: channel.c:4078 __ast_read: DTMF end '2' received on DAHDI/1-1, duration 267 ms
[Feb 11 16:15:24] DTMF[2504][C-00000000]: channel.c:4119 __ast_read: DTMF end accepted with begin '2' on DAHDI/1-1
[Feb 11 16:15:24] DTMF[2504][C-00000000]: channel.c:4148 __ast_read: DTMF end passthrough '2' on DAHDI/1-1
    -- Hanging up on 'DAHDI/1-1'
    -- Hungup 'DAHDI/1-1'
  == Spawn extension (from-internal, 07852??????, 2) exited non-zero on 'SIP/fritzbox-00000000'