Sep  9 12:27:31 WARNING[30185]: chan_sip.c:2570 sip_write: Asked to transmit frame type 64, while native formats is 2 (read/write = 64/64)
Sep  9 12:27:31 WARNING[30185]: chan_sip.c:2570 sip_write: Asked to transmit frame type 64, while native formats is 2 (read/write = 64/64)
Sep  9 12:27:31 WARNING[30185]: chan_sip.c:2570 sip_write: Asked to transmit frame type 64, while native formats is 2 (read/write = 64/64)
Sep  9 12:27:31 WARNING[30185]: chan_sip.c:2570 sip_write: Asked to transmit frame type 64, while native formats is 2 (read/write = 64/64)
Sep  9 12:27:31 WARNING[30185]: chan_sip.c:2570 sip_write: Asked to transmit frame type 64, while native formats is 2 (read/write = 64/64)
Sep  9 12:27:31 WARNING[30185]: chan_sip.c:2570 sip_write: Asked to transmit frame type 64, while native formats is 2 (read/write = 64/64)
Sep  9 12:27:31 WARNING[30185]: chan_sip.c:2570 sip_write: Asked to transmit frame type 64, while native formats is 2 (read/write = 64/64)
Sep  9 12:27:31 WARNING[30185]: chan_sip.c:2570 sip_write: Asked to transmit frame type 64, while native formats is 2 (read/write = 64/64)
Sep  9 12:27:31 WARNING[30185]: chan_sip.c:2570 sip_write: Asked to transmit frame type 64, while native formats is 2 (read/write = 64/64)
 < over and over>