> 6.2 | Changing Physical Audio Interface

> To switch back and forth between all three audio interfaces you can use the command:
> AT^SAIC=<io>[, <mic>[, <ep>][, <clock>, <mode>, <frame_mode>]]
> The AT^SAIC write command is usable only in audio modes 2 – 6. If AT^SNFS=1, any attempt to use the AT^SAIC write command returns “+CME ERROR: operation not allowed”. This is because all default parameters in audio mode 1 are determined for type approval and are not adjustable (see also Section 6.1 and [2]).
> The factory defaults of AT^SAIC vary with the selected audio mode.

> Table 5: | Default values of AT^SAIC

> Mode | Default settings
> ^SNFS=1 or 4 or 5 | AT^SAIC=2,1,1,0,0,0
> ^SNFS=2 or 3 or 6 | AT^SAIC=2,2,2,0,0,0

> Examples:
> AT^SAIC=1,,,0,0,1 selects the digital PCM interface in Master mode with 256kHz clock and long frame.
> AT^SAIC=2,1,2 selects the analog interfaces MIC1 and EP2.
> AT^SAIC=2,2,3 selects the analog interfaces MIC2, EP1 and EP2.