Mar 21 22:54:47 NOTICE[20054]: rtp.c:509 ast_rtp_read: Unknown RTP codec 72 received
    -- Executing ParkedCall("SIP/000590027B44-dd67", "9001") in new stack
Mar 21 22:54:50 NOTICE[20054]: rtp.c:509 ast_rtp_read: Unknown RTP codec 72 received
    -- Stopped music on hold on SIP/NOSUPPORT20-8440
    -- Channel SIP/000590027B44-dd67 connected to parked call 9001
    -- Attempting native bridge of SIP/000590027B44-dd67 and SIP/NOSUPPORT20-8440
    -- Started music on hold, class 'default', on SIP/NOSUPPORT20-8440
Mar 21 22:54:55 NOTICE[20054]: rtp.c:509 ast_rtp_read: Unknown RTP codec 72 received
    -- Stopped music on hold on SIP/NOSUPPORT20-8440
Mar 21 22:54:58 WARNING[20054]: channel.c:511 ast_channel_walk_locked: Avoided deadlock for 'SIP/000590027B44-dd67', 100 retries!
Mar 21 22:54:58 WARNING[20054]: channel.c:511 ast_channel_walk_locked: Avoided deadlock for 'SIP/000590027B44-dd67', 100 retries!
rtr1*CLI> show channels
        Channel  (Context    Extension    Pri )   State Appl.         Data           
SIPPeer/SIP/000590027B44-dd67  (default    s            1   )    Down (None)        (None)         
Parking/SIP/NOSUPPORT20-8440  (macro-stdexten s            3   )    Down (None)        (None)         
2 active channel(s)
Mar 21 22:55:10 WARNING[20054]: channel.c:511 ast_channel_walk_locked: Avoided deadlock for 'SIP/000590027B44-dd67', 100 retries!
rtr1*CLI> show channels
        Channel  (Context    Extension    Pri )   State Appl.         Data           
SIPPeer/SIP/000590027B44-dd67  (default    s            1   )    Down (None)        (None)         
Parking/SIP/NOSUPPORT20-8440  (macro-stdexten s            3   )    Down (None)        (None)         
2 active channel(s)
Mar 21 22:55:10 WARNING[20054]: channel.c:511 ast_channel_walk_locked: Avoided deadlock for 'SIP/000590027B44-dd67', 100 retries!