7:58 a.m.
I have a handsfree unit with ofono connecting to a VTech landline phone as audio gateway.
On outgoing calls, the only HFP notification for the call is only a +CIEV: call status,1.
drivers/hfpmodem/voicecall.c: ciev_call_notify() will not do anything if without a call
already created. The VTech phone also returns error to AT+CLCC command.
I am thinking to create the ofono_call in drivers/hfpmodem/voicecall.c: ciev_call_notify()
if no call has been created. However, this might have big impacts other phones.
Specifically, does "+CIEV: call status,1" get emitted outside of standard phone
calls, such as for alarms or notifications with some phones? Any thoughts on this?
The following is the hcidump for an outgoing call and hangup from the audio gateway:
HCI Event: Mode Change (0x14) plen 6
status 0x00 handle 1
mode 0x00 interval 0
Mode: Active
HCI Event: Max Slots Change (0x1b) plen 3
handle 1 slots 5
HCI Event: Max Slots Change (0x1b) plen 3
handle 1 slots 1
HCI Event: Connect Request (0x04) plen 10
bdaddr
00:11:A0:23:54:B6 class 0x000000 type eSCO
< HCI Command: Accept Synchronous Connection (0x01|0x0029) plen 21
bdaddr 00:11:A0:23:54:B6
@ . . . @ . . . . . ` . . ? .
HCI Event: Command Status (0x0f) plen 4
Accept Synchronous
Connection (0x01|0x0029) status 0x00 ncmd 1
HCI Event: Synchronous Connect Complete (0x2c) plen 17
status 0x00 handle 257 bdaddr 00:11:A0:23:54:B6 type eSCO
Air mode: CVSD
ACL data: handle 1 flags 0x02 dlen 22
L2CAP(d): cid 0x0041
len 18 [psm 3]
RFCOMM(d): UIH: cr 0 dlci 8 pf 0 ilen 14 fcs 0x80
. . + C I E V : 1 , 1 . .
HCI Event: Mode Change (0x14) plen 6
status 0x00 handle 1
mode 0x02 interval 150
Mode: Sniff
HCI Event: Sniff Subrate (0x2e) plen 11
status 0x00 handle
1
max latency transmit 150 receive 1200
min timeout remote 0 local 2
HCI Event: Disconn Complete (0x05) plen 4
status 0x00
handle 257 reason 0x13
Reason: Remote User Terminated Connection
ACL data: handle 1 flags 0x02 dlen 22
L2CAP(d): cid 0x0041
len 18 [psm 3]
RFCOMM(d): UIH: cr 0 dlci 8 pf 0 ilen 14 fcs 0x80
. . + C I E V : 1 , 0 . .
HCI Event: Mode Change (0x14) plen 6
status 0x00 handle 1
mode 0x00 interval 0
Mode: Active
HCI Event: Max Slots Change (0x1b) plen 3
handle 1 slots 5
HCI Event: Max Slots Change (0x1b) plen 3
handle 1 slots 1
HCI Event: Mode Change (0x14) plen 6
status 0x00 handle 1
mode 0x02 interval 798
Mode: Sniff
HCI Event: Sniff Subrate (0x2e) plen 11
status 0x00 handle
1
max latency transmit 798 receive 798
min timeout remote 0 local 2
Regards,
Bret
11:17 p.m.
Hi Bret,
On 08/07/2012 04:58 PM, Bret Hassler wrote:
I have a handsfree unit with ofono connecting to a VTech landline
phone
as audio gateway. On outgoing calls, the only HFP notification for the
call is only a +CIEV: call status,1.
call indicator should not be going to 1 without first having the
callsetup indicator going to 1. Doesn't sound like this is a proper HFP
device. What type of device is this?
drivers/hfpmodem/voicecall.c: ciev_call_notify() will not do anything
if
without a call already created. The VTech phone also returns error to
AT+CLCC command.
I am thinking to create the ofono_call in drivers/hfpmodem/voicecall.c:
ciev_call_notify() if no call has been created. However, this might have
big impacts other phones. Specifically, does “+CIEV: call status,1” get
emitted outside of standard phone calls, such as for alarms or
notifications with some phones? Any thoughts on this?
Instead of hcidump you might want to use the built-in oFono AT logging.
See HACKING for details.
Regards,
-Denis
10:36 p.m.
It's a Vtech DS6321-3.
https://www.bluetooth.org/tpg/EPL_Detail.cfm?ProductID=13096
It provides a Handsfree Gateway service. I was wondering if it doesn't send any
callsetup indicators because it is not cellular. Otherwise, you're probably correct
that it's not a proper device.
-Bret
-----Original Message-----
From: Denis Kenzior [mailto:denkenz@gmail.com]
Sent: Tuesday, August 07, 2012 8:17 AM
To: ofono(a)ofono.org
Cc: Bret Hassler
Subject: Re: Outgoing call from AG fails
Hi Bret,
On 08/07/2012 04:58 PM, Bret Hassler wrote:
I have a handsfree unit with ofono connecting to a VTech landline
phone as audio gateway. On outgoing calls, the only HFP notification
for the call is only a +CIEV: call status,1.
call indicator should not be going to 1 without first having the callsetup indicator going
to 1. Doesn't sound like this is a proper HFP device. What type of device is this?
drivers/hfpmodem/voicecall.c: ciev_call_notify() will not do anything
if without a call already created. The VTech phone also returns error
to
AT+CLCC command.
I am thinking to create the ofono_call in drivers/hfpmodem/voicecall.c:
ciev_call_notify() if no call has been created. However, this might
have big impacts other phones. Specifically, does "+CIEV: call
status,1" get emitted outside of standard phone calls, such as for
alarms or notifications with some phones? Any thoughts on this?
Instead of hcidump you might want to use the built-in oFono AT logging.
See HACKING for details.
Regards,
-Denis
3:20 a.m.
Hi Bret,
Just a heads up: it is customary to not top-post on open source mailing
lists. So please don't do that in the future ;)
On 08/08/2012 07:36 AM, Bret Hassler wrote:
It's a Vtech DS6321-3.
https://www.bluetooth.org/tpg/EPL_Detail.cfm?ProductID=13096
It provides a Handsfree Gateway service. I was wondering if it doesn't send any
callsetup indicators because it is not cellular. Otherwise, you're probably correct
that it's not a proper device.
HFP 1.6 does explicitly state that callsetup is required in the case of
an outgoing call being dialed from the HF. There is no equivalent
sequence diagram for the call being dialed from the AG, however this is
mandated by TR002. So from that standpoint you're a little bit unlucky
in that your device is not really compliant.
Just quickly glancing at the product page, it does indicate mobile phone
compatibility. Maybe the HFP part is only meant when you're using it
with a mobile network.
That said, you can try to hack around this a bit by detecting the call=0
-> call=1 transition regardless of callsetup, but you'd still be missing
any sort of dialed number information, etc. Not sure how really useful
oFono would be for this usecase.
Regards,
-Denis
3693
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3 comments
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participants (2)
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Bret Hassler -
Denis Kenzior