Bluetooth incoming calls not redirected to car hands-free system on Fairphone 6
- /e/OS version: 3.1.2-a15-20250903521531-official-FP6
- Device model(s): FP6
- Impacted Application: ~"/e/OS Dialer"
- Affected application/URL: Bluetooth calls
- Browser/client and version:/e/OS 138.0.7204.179
## The problem
**Description:**
On the Fairphone 6 running /e/OS 3.1.2-a15 (official), Bluetooth calls are not redirected to the car’s hands-free system.
Bluetooth music streaming (A2DP) works perfectly.
Phone calls (HFP) remain on the smartphone speaker, even though the “Phone calls” option is enabled in Bluetooth settings.
During a call, there is no possibility to manually switch the audio output to the car system.
This issue occurs on **two different Fairphone 6 devices** and in **two different cars.**
**Steps to reproduce:**
1. Pair Fairphone 6 with the car’s Bluetooth system.
2. Place or receive a phone call.
3. Observe that audio is not redirected to the car speakers (call audio stays on the phone).
**Expected behavior:**
Phone calls should be routed through the car’s Bluetooth hands-free profile (HFP).
Car microphone and speakers should be used automatically during calls.
**Actual behavior:**
Calls are not redirected: the FP6 uses its internal speaker and microphone.
Music via Bluetooth (A2DP) works fine.
**Devices affected:**
Smartphones:
Fairphone 6 (two different devices tested)
/e/OS version: 3.1.2-a15 official (Android 15)
Cars:
Seat Alhambra i-Tech, year 2014
Ford Fiesta Sync, year 2017
**Additional information:**
With Fairphone 4 on /e/OS 3.0.4-a14, Bluetooth calls worked perfectly in both cars.
This seems to be a regression with Fairphone 6 on Android 15.
“Phone calls” toggle is correctly enabled in Bluetooth connection settings.
Re-pairing devices, clearing Bluetooth cache, and restarting both phone and car did not solve the issue.
A Bluetooth HCI log can be provided if required.
**Workarounds tried:**
Re-pairing devices (phone ↔ car)
Clearing Bluetooth data and cache
Restarting phones and car systems
Verifying “Phone calls” toggle is enabled in Bluetooth settings
Manually attempting to switch audio output during calls
→ None of these workarounds solved the issue.
## Technical details
**Paste any relevant logs (`adb logcat`) in the codeblock below if you have any**
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