JK Audio CellTap 4C - Configuration; TRRS Configurations

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CellTap 4C Wireless Phone Audio Tap
Conguration
TRRS Congurations
If the headset is not working properly, try changing the TRRS conguration. To
switch the standard, disconnect all cables, open up your CellTap 4C by removing
the cover, ip the switch and close it back up. The internal switch supports the
following wiring standards:
Standard T R1 R2 S
A:
OMTP Left Output Right Output Mic Ground
B:
AHJ (Default) Left Output Right Output Ground Mic
C:
AHJ (Alternate) Left Output Right Output Ground Mic
OMTP: Open Mobile Terminal Platform, AHJ: American Headset Jack.
The A setting is wired for the Original Nokia standard. The B and C settings are
wired the same and are used on most phones. The C setting reduces noise on
many Smartphones. However, this position may potentially disable music/phone
controls on the iPhone and other phones. Use (default) Position B for the iPhone
or any phone or device that experiences trouble with music/phone controls under
position C.
Phones are continuously changing so trial and error may be the best method to
determine which position is best for your particular phone.