Mine also drops call from UMA to cellular. I am using t-Mobile's "Super" router and still issues. Running .133. If I switch to mobile preferred I go to SOS immediately in my house downstairs so UMA is necessity for me. Would be nice if handoff really worked but always drop call when leaving home on a call and also drops most of time if on a call and drive into garage before UMA picked up. I plan ahead with calls and terminate calls and then redial when I have service. Real pita.
Doc
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