Bluetooth and Car Kit and Dual-SIM: calling (still) unreliable/random

Bug Reports
#1

REPRODUCIBILITY: 75% (often)
OSVERSION: 4.4.0.64
HARDWARE: Sony Xperia 10 III - xqbt52 - xqbt52 - 1.0.0.134 - aarch64
UI LANGUAGE: English (UK) (user: en_GB, os: en_GB.utf8)
REGRESSION: no

DESCRIPTION:

Calling and receiving calls while connected to a Car Kit is unstable. See also the links below for more context.

STEPS TO REPRODUCE:

  1. Have a DualSIM Phone and both SIMs active
  2. Pair with a Car Kit (HFP?)
  3. Make a call
  4. Receive a call

PRECONDITIONS:

I use 1 SIM for calls, the other for mobile data.

While the data sim can make and receive calls, no one recognizes the number when called.

Also, calls are more expensive with my plan.

EXPECTED RESULTS:

Calls should always go out, and come in through the SIM selected in the Settings as used for Calls.

ACTUAL RESULTS:

Often the wrong SIM is used for outgoing calls.

Incoming calls to the other SIM do not go through the car kit (ringing works, but after picking up the connection often is dropped).

MODIFICATIONS:

  • Patchmanager: yes
  • OpenRepos: yes
  • Chum: yes
  • Other: no:

ADDITIONAL INFORMATION:

Previous discussions:

Device Owner User: nemo
Home Encryption: enabled

the initial version of this bug report was created using Bugger 0.9.8
2 Likes
Improve dual-sim user exeirience
Bluetooth and Radiosat (Renault handsfree set): regression in connection
Dual-sim mobile phones: dissociate uses by cards and simultaneous activation of 2 cards in transmission and reception
#2

(…aand I have a bug in Bugger where the steps to reproduce are not posted. :frowning: Added manually.)

#3

Here some related bug reports:

1 Like
#4

Thank you for adding the context.

I’d like to make clear that this one is NOT about pairing, or Audio connections but purely about telephony.

#5

There are lots of suggestions on this subject in that topic here Improve Dual-SIM support - #5 by lzbk
Other topics deal with this (or bugs related to SIM card choice) :

1 Like