Dear All:
<br>I am currently trying to extend a bluetooth channel driver (chan_mobile) 
for Asterisk (a VoIP PBX).
<br>Now I have a few questions about SCO in bluez stack.
<br>(1) Does latest Bluez support multiple SCO from one USB dongle to 
multiple cell phones (Hands-Free Profile)?
<br>According to this discussion thread 
<a class="moz-txt-link-freetext" href="http://thread.gmane.org/gmane.linux.bluez.devel/12893/focus=12903">http://thread.gmane.org/gmane.linux.bluez.devel/12893/focus=12903</a>, the 
hci_usb.c is not patched to fully support multiple SCO links for a 
single USB dongle. (But the weird thing is the original poster gets 
things to work by only removing wrong usage in socket setting).
<br>
<br>(2) Is there any simple way to test the simultaneous SCO connections 
from one dongle to two cell phones? By using socket, I know we can send 
data and receive from the remote side. But as for interacting with cell 
phone&#39;s Hand&#39;s Free Profile, is there any simple way? such as pressing 
the button on the phone?<br>
<br>(3) Is there any way to check the packet type of baseband controller of the USB bluetooth dongle (HV2 or HV3..)? since the hci_dump or hcitool can only retrieve or dump the hci message.<br><br>Thanks.