NathanA
2021-07-21, 08:26 AM
Does anybody have knowledge of, or access to materials that explain, how to configure audio codec preference order on older Qualcomm modems (specifically for VoLTE)?
I have MSM8994-based UE, and /efsprofiles/overideconfig is not used by this modem firmware. Neither is NV 73690 (qipcall_audio_codec_list).
I wonder if NV 65958 (voip_prfrd_codec) would be appropriate location for this config, but I cannot find any documentation on it.
I want to order AMR-WB above AMR. Right now, for outgoing call, UE currently advertises both AMR and AMR-WB in the SDP of SIP INVITE, but AMR is higher priority, so it gets picked. Also for incoming call, even when AMR-WB is included in SDP media types from network INVITE, UE picks AMR instead.
Thanks for any help!
I have MSM8994-based UE, and /efsprofiles/overideconfig is not used by this modem firmware. Neither is NV 73690 (qipcall_audio_codec_list).
I wonder if NV 65958 (voip_prfrd_codec) would be appropriate location for this config, but I cannot find any documentation on it.
I want to order AMR-WB above AMR. Right now, for outgoing call, UE currently advertises both AMR and AMR-WB in the SDP of SIP INVITE, but AMR is higher priority, so it gets picked. Also for incoming call, even when AMR-WB is included in SDP media types from network INVITE, UE picks AMR instead.
Thanks for any help!