If one/both of these don't resolve the problem, i'm unsure what else to suggest as a phone restart or hard reset did not solve the problem for me (but it also wasn't technically "phantom" since i just wasn't paying attention that it actually existed within the "unknown senders"
The Inter-M PP-6213 is a 9 channel microphone/line mixer. Inputs one and two feature priority override and ducking over the other channels, making the PP-6213 ideal for paging over BGM inputs. Channels 1 and 2 also feature switchable phantom power for use with condenser type microphones. All 9 inputs feature a 3 tone, low, mid and high frequency equaliser. 2 additional auxiliary inputs are available on inch (6.35 mm) jack including 2 priority line level inputs also on inch (6.35 mm) jack. The output section of the mixer features a 4 tone equaliser, low, lo-mid, high-mid and high frequency.
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