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@chenshaoju
Last active March 18, 2026 00:56
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Force Enable VoLTE for LineageOS by build.prop
# It's may out of the day.
# Source: https://forum.xda-developers.com/showpost.php?p=73608658&postcount=28
# Debug Options
persist.dbg.ims_volte_enable=1
persist.dbg.volte_avail_ovr=1
persist.dbg.vt_avail_ovr=1
persist.dbg.wfc_avail_ovr=1
# Radio Options
persist.radio.rat_on=combine
persist.radio.data_ltd_sys_ind=1
persist.radio.data_con_rprt=1
persist.radio.calls.on.ims=1
@Helena9666
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Not working

@chenshaoju
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Author

It's out of date, sorry. :\

@psjbeisler
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TY, finally fixed my long standing issues

@rumplestilzken
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Unihertz Titan Slim - Lineage20 as of 4/16/2023 - Install Phh Settings->MediaTek IMS APK and apply these keys and VoLTE works.

@robin-paulson
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Unihertz Titan Slim - Lineage20 as of 4/16/2023 - Install Phh Settings->MediaTek IMS APK and apply these keys and VoLTE works.

Hi, could you expand on this please? Thanks

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