简而言之，从ofono-phonesim调制解调器的角度来看，事情似乎不错，但我仍然无法让 HFP 音频电话用于通话（同时 A2DP 可以完美地用于音乐播放）。
我在 Ubuntu 20.04 Focal Fossa，arm64 上。
这是我的先前的问题。它可能看起来像是这个问题但是，我的用例恰恰相反，因为我试图使用 Linux 机器的 USB 外围设备（15 美元的麦克风和 15 美元的扬声器条）作为耳机单元角色，并使用移动设备作为音频网关。
此外，我已经尝试了最佳答案，特别是到目前为止的所有内容：
ofono-phonesim -p 12345 /usr/share/phonesim/default.xml
和
dbus-send --print-reply --system --dest=org.ofono /phonesim org.ofono.Modem.SetProperty string:"Powered" variant:boolean:"true"
和
/ofono/test$ ./enable-modem
并且从调制解调器的角度来看似乎没什么问题，但是我仍然听不到电话音频，当我尝试手动将智能手机设置为耳机音频网关（HSP/HFP）时，我在 blueman 中收到“无法将配置文件更改为耳机音频网关”的信息。
以下是 ~/ofono/test/list-modems 的输出：
user@machine:~/dir$ ofono-phonesim -p 12345 /usr/share/phonesim/default.xml&
[2] 6834
user@machine:~/dir$ dbus-send --print-reply --system --dest=org.ofono /phonesim org.ofono.Modem.SetProperty string:"Powered" variant:boolean:"true"
method return time=1645567249.694253 sender=:1.163 -> destination=:1.166 serial=33 reply_serial=2
user@machine:~/dir/ofono/test$ ./enable-modem /hfp/org/bluez/hci0/dev_E0_D0_83_93_CC_5A
Connecting modem /hfp/org/bluez/hci0/dev_E0_D0_83_93_CC_5A...
user@machine:~/dir/ofono/test$ test/list-modems
bash: test/list-modems: No such file or directory
user@machine:~/dir/ofono/test$ ./list-modems
[ /hfp/org/bluez/hci0/dev_E0_D0_83_93_CC_5A ]
Online = 1
Powered = 1
Lockdown = 0
Emergency = 0
Serial = E0:D0:83:93:CC:5A
Interfaces = org.ofono.VoiceCallManager org.ofono.CallVolume org.ofono.Handsfree org.ofono.NetworkRegistration
Features = net
Name = enwave64's Note10
Type = hfp
[ org.ofono.VoiceCallManager ]
EmergencyNumbers = 118 110 08 911 000 112 999 119
[ org.ofono.CallVolume ]
SpeakerVolume = 50
MicrophoneVolume = 50
Muted = 0
[ org.ofono.Handsfree ]
InbandRinging = 1
EchoCancelingNoiseReduction = 1
DistractedDrivingReduction = 0
VoiceRecognition = 0
Features = three-way-calling echo-canceling-and-noise-reduction voice-recognition release-all-held release-specified-active-call private-chat create-multiparty hf-indicators
BatteryChargeLevel = 2
[ org.ofono.NetworkRegistration ]
Status = registered
Mode = auto-only
Name =
Strength = 40
[ /phonesim ]
Online = 0
Powered = 1
Lockdown = 0
Emergency = 0
Manufacturer = MeeGo
Model = Synthetic Device
Revision = REV1
Serial = 1234567890
Interfaces = org.ofono.SmartMessaging org.ofono.PushNotification org.ofono.MessageManager org.ofono.Phonebook org.ofono.TextTelephony org.ofono.RadioSettings org.ofono.CallForwarding org.ofono.SimToolkit org.ofono.SimAuthentication org.ofono.AllowedAccessPoints org.ofono.VoiceCallManager org.ofono.SimManager
Features = sms tty rat stk sim
Type = hardware
[ org.ofono.SmartMessaging ]
[ org.ofono.PushNotification ]
[ org.ofono.MessageManager ]
ServiceCenterAddress = +15551234567
UseDeliveryReports = 0
Bearer = cs-preferred
Alphabet = default
[ org.ofono.Phonebook ]
[ org.ofono.TextTelephony ]
Enabled = 1
[ org.ofono.RadioSettings ]
TechnologyPreference = any
AvailableTechnologies = gsm umts lte
[ org.ofono.CallForwarding ]
VoiceUnconditional =
VoiceBusy =
VoiceNoReply =
VoiceNoReplyTimeout = 20
VoiceNotReachable =
ForwardingFlagOnSim = 0
[ org.ofono.SimToolkit ]
IdleModeText =
IdleModeIcon =
MainMenuTitle =
MainMenuIcon =
MainMenu =
[ org.ofono.SimAuthentication ]
NetworkAccessIdentity = [email protected]
[ org.ofono.AllowedAccessPoints ]
[ org.ofono.VoiceCallManager ]
EmergencyNumbers = 911 1020 112
[ org.ofono.SimManager ]
Present = 1
CardIdentifier = 8949222074451242066
SubscriberIdentity = 246813579
ImsPrivateIdentity = [email protected]
FixedDialing = 0
BarredDialing = 0
MobileCountryCode = 246
MobileNetworkCode = 81
SubscriberNumbers = 358501234567
LockedPins =
ServiceNumbers = [112] = '112' [Emergency] = '999' [Police] = '997' [Firemen] = '998' [Sea emergency] = '+48601100100' [Mountain emer.] = '+48601100300' [.HELP DESK] = '2601' [.RECHARGE] = '5555' [.Voicemail] = '+48601222222' [.Voice access] = '+48601104444'
PreferredLanguages = de en it fr es nl
PinRequired = none
Retries = [pin = 3]
CardSlotCount = 1
ActiveCardSlot = 1
bluetoothd似乎只提供与 A2DP 相关的有用信息。
有什么想法吗？有人用手机将其用作音频网关吗？
编辑： 在 blueman 中尝试手动切换到 HFP 后cat /var/log/syslog* | grep -i pulse显示。[datetime][machine] pulseaudio[839]: Refused to switch profile to headset_audio_gateway: Not connected
2022 年 2 月 24 日更新：
所以我意识到我已经headset=native在 /etc/pulse/default.pa 中进行了设置，这是从我之前的一些测试中得出的，当时我试图确保使用 HSP 而不是 HFP。所以现在我已经设置好了，headset=ofono当我切换到 HFP 时，我不再收到错误消息“无法将配置文件更改为 earphone_audio_gateway”。
输出自$ pacmd list-cards：
index: 4
name: <bluez_card.E0_D0_83_93_CC_5A>
driver: <module-bluez5-device.c>
owner module: 28
properties:
device.description = "enwave64's Note10"
device.string = "E0:D0:83:93:CC:5A"
device.api = "bluez"
device.class = "sound"
device.bus = "bluetooth"
device.form_factor = "phone"
bluez.path = "/org/bluez/hci0/dev_E0_D0_83_93_CC_5A"
bluez.class = "0x5a020c"
bluez.alias = "enwave64's Note10"
device.icon_name = "audio-card-bluetooth"
profiles:
headset_head_unit: Headset Head Unit (HSP/HFP) (priority 30, available: no)
a2dp_source: High Fidelity Capture (A2DP Source) (priority 20, available: unknown)
headset_audio_gateway: Headset Audio Gateway (HSP/HFP) (priority 10, available: yes)
off: Off (priority 0, available: yes)
active profile: <headset_audio_gateway>
sinks:
bluez_sink.E0_D0_83_93_CC_5A.headset_audio_gateway/#7: enwave64's Note10
sources:
bluez_sink.E0_D0_83_93_CC_5A.headset_audio_gateway.monitor/#17: Monitor of enwave64's Note10
bluez_source.E0_D0_83_93_CC_5A.headset_audio_gateway/#18: enwave64's Note10
ports:
phone-output: Phone (priority 0, latency offset 0 usec, available: yes)
properties:
phone-input: Phone (priority 0, latency offset 0 usec, available: yes)
properties:
所以至少我明白了earphone_audio_gateway：耳机音频网关（HSP/HFP）（优先级 10，可用：是）现在。现在的问题是，我似乎可以切换到 HSP/HFP，但仍然没有声音。这与我在安装 ofono 和 ofono-phonesim 之前使用 HSP 得到的结果相同。
来自的最后一条新信息cat /var/log/syslog* | grep -i pulse：pulseaudio[882]: Deferred setup faild on fd -1: Transport endpoint is not connected。不确定这是什么意思或者是否相关，但看起来像是一个新的错误。