[asterisk-users] chan_mobile problem with audio (distorted)

[Marian Zahariev]

Hello to all.                        

I have installed asterisk-1.6.2.1 + asterisk-addons-1.6.2.0 (for chan_mobile) + bluez-4.60.

Bluetooth Dongle: Canyon CN-BTU4 (0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode))
Device Descriptor:                                                                                   
  bLength                18                                                                          
  bDescriptorType         1                                                                          
  bcdUSB               2.00                                                                          
  bDeviceClass          224 Wireless                                                                 
  bDeviceSubClass         1 Radio Frequency                                                          
  bDeviceProtocol         1 Bluetooth                                                                
  bMaxPacketSize0        64                                                                          
  idVendor           0x0a12 Cambridge Silicon Radio, Ltd                                             
  idProduct          0x0001 Bluetooth Dongle (HCI mode)                                              
  bcdDevice           31.64                                                                          
  iManufacturer           0                                                                          
  iProduct                2 EDRClassone                                                              
  iSerial                 0                                                                          
  bNumConfigurations      1                                                                          

Mobile Phone: Nokia E51
Firmware:              
400.34.011             
26.05.2009             
RM-244                 
Nokia E51 (05)         

OS: Slackware Linux (current)
Kernel: Linux 2.6.32.5-smp #2 SMP Sat Jan 23 01:37:47 CST 2010 i686 AMD Athlon(tm) 64 X2 Dual Core Processor 4200+ AuthenticAMD GNU/Linux

I've got everything working, but after a few call audio got distorted similar to this: https://issues.asterisk.org/view.php?id=13282

Here is some errors in syslog:

bluetoothd[2588]: Bluetooth daemon 4.60
bluetoothd[2589]: Starting SDP server
crc16: exports duplicate symbol crc16 (owned by kernel)
Bluetooth: L2CAP ver 2.14
Bluetooth: L2CAP socket layer initialized
Bluetooth: SCO (Voice Link) ver 0.6
Bluetooth: SCO socket layer initialized
bluetoothd[2589]: HCI dev 0 registered
bluetoothd[2589]: HCI dev 0 up
bluetoothd[2589]: Starting security manager 0
bluetoothd[2589]: Parsing /etc/bluetooth/serial.conf failed: No such file or directory
crc16: exports duplicate symbol crc16 (owned by kernel)
Bluetooth: RFCOMM TTY layer initialized
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM ver 1.11
bluetoothd[2589]: Adapter /org/bluez/2588/hci0 has been enabled
bluetoothd[2589]: link_key_request (sba=00:1A:7D:11:6E:3D, dba=00:24:03:BC:4F:DD)
.....
btusb_isoc_complete: hci0 corrupted SCO packet
btusb_isoc_complete: hci0 corrupted SCO packet
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
btusb_isoc_complete: hci0 corrupted SCO packet
btusb_isoc_complete: hci0 corrupted SCO packet
hci_scodata_packet: hci0 SCO packet for unknown connection handle 46
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0
hci_scodata_packet: hci0 SCO packet for unknown connection handle 0

Asterisk show no errors...

-- 
Marian Zahariev