RE: [Bluez-users] Bluetooth Voice Setting

["Khaled" <khaled@ipbill.com>]

Hi Marcel,

> > > > Would you not expect to see '> SCO' lines in the hcidump output
> > > given that I
> > > > am (trying to) use SCO for voice transfer? Like you said in
> one of the
> > > > archives, hcidump shows payload of the SCO packets over hci?
> > >
> > > The Headset and Headfree profiles specify when the SCO
> channel has to be
> > > opened. Maybe your connection is not in that state. Post the output of
> > > hcidump, so we can see what's going on.
> >
> > This is when the bluetooth phone is initialised:
>
> if you wanna emulate a headset then you need to add Headset profile
> records and not Headset Audio Gateway records.

I mean to use the handsfree profile, so that I can speak into my computer
through a headset (earphone and mic), sorry if I was unclear earlier.

I have done sdptool add hf to add the handsfree profile:

Service Name: Handsfree
Service RecHandle: 0x10002
Service Class ID List:
  "Handsfree" (0x111e)
  "Generic Audio" (0x1203)
Protocol Descriptor List:
  "L2CAP" (0x0100)
  "RFCOMM" (0x0003)
    Channel: 3
Profile Descriptor List:
  "Handsfree" (0x111e)
    Version: 0x0101


One thing I have noticed is that Handsfree is reffered to as 0x111e; I need
to use 0x111f which is the handsfree audio gateway profile as advertised on
my mobile. Is this an incompatibility issue?
The service on the mobile of interest is:

Service Name: Voice Gateway
Service RecHandle: 0x10005
Service Class ID List:
  "Handfree Audio Gateway" (0x111f)
  "Generic Audio" (0x1203)
Protocol Descriptor List:
  "L2CAP" (0x0100)
  "RFCOMM" (0x0003)
    Channel: 13
Language Base Attr List:
  code_ISO639: 0x656e
  encoding:    0x6a
  base_offset: 0x100
Profile Descriptor List:
  "Handsfree" (0x111e)
    Version: 0x0100

Thus I have specified channel 13 under rfcomm (only this channel registers
my machine as a headset to my mobile phone).
Any thoughts? When I do sdptool local browse:

[root@mdk10-voipgsm root]# sdptool browse local
Browsing FF:FF:FF:00:00:00 ...
Service Name: Voice Gateway
Service RecHandle: 0x10000
Service Class ID List:
  "Handfree Audio Gateway" (0x111f)
  "Generic Audio" (0x1203)
Protocol Descriptor List:
  "L2CAP" (0x0100)
  "RFCOMM" (0x0003)
    Channel: 5
Profile Descriptor List:
  "Handfree Audio Gateway" (0x111f)
    Version: 0x0100

Service Name: Voice Gateway
Service RecHandle: 0x10001
Service Class ID List:
  "Handfree Audio Gateway" (0x111f)
  "Generic Audio" (0x1203)
Protocol Descriptor List:
  "L2CAP" (0x0100)
  "RFCOMM" (0x0003)
    Channel: 6
Profile Descriptor List:
  "Handsfree" (0x111e)
    Version: 0x0100

Service Name: Handsfree
Service RecHandle: 0x10002
Service Class ID List:
  "Handsfree" (0x111e)
  "Generic Audio" (0x1203)
Protocol Descriptor List:
  "L2CAP" (0x0100)
  "RFCOMM" (0x0003)
    Channel: 3
Profile Descriptor List:
  "Handsfree" (0x111e)
    Version: 0x0101

Isn't this correct?



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