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HC25 AT Command Set - Portech.com.tw

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<strong>HC25</strong> <strong>AT</strong> <strong>Command</strong> <strong>Set</strong><br />

16.7 <strong>AT</strong>^SNFS<br />

s<br />

Notes<br />

• Audio mode 1 will be active each time after module is powered up.<br />

• The write <strong>com</strong>mand can be used during a voice call to switch back and forth be<strong>tw</strong>een different modes. This<br />

allows the user, for example, to switch handsfree operation (speakerphone) on and off.<br />

• After the sequence <strong>AT</strong>^SNFTTY=1 has been invoked the <strong>AT</strong>^SNFS read <strong>com</strong>mand does still indicate the last<br />

active audio mode.<br />

• Value returned by the <strong>AT</strong>^SNFS read <strong>com</strong>mand is however no more valid if <strong>HC25</strong> is operating in TTY/CTM<br />

mode after invoking the <strong>AT</strong>^SNFTTY=1 <strong>AT</strong> sequence.<br />

• After switching back from TTY/CTM mode to the no-TTY/CTM mode the audio mode in use before activating<br />

TTY/CTM mode be<strong>com</strong>es back active.<br />

<strong>HC25</strong>_<strong>AT</strong>C_V01.200 Page 259 of 290 7/25/07<br />

Confidential / Released

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