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
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