Ericsson LBI-39110 EXT MIC Handsfree, Unit. To enable the external mic, press, Simplex, Mute

after a preset time-out or can be removed from the

display by pressing . Call timer can be

refresh by pressing followed by . Time of the last interconnect call will be displayed.

4/EXT MIC (HANDSFREE)

The external mic (Handsfree) option routes audio to an external Portable or Vehicle Handsfree

unit. To enable the external mic, press

followed by . Toggling this function provides the user with the capability to have private conversations or allow other passengers in the vehicle to participate in the conversation (Vehicular Option). The character display shows "INT MIC" if the internal speaker/mic is currently active. To toggle the state to the external speaker/mic press

key twice while the FCN icon is on. (NOTE: With an external device connected the Allegra will always “power-up” with the external unit enabled.)

5/SIMPLEX

When operating in the simplex mode, the MUTE icon follows the state of the transmit audio. While in simplex mode, PTT must be pressed prior to speaking. (NOTE: Applicable only in the interconnect mode.)

6/MUTE

This function enables the user to mute the transmit audio when operating in the duplex mode. To disable the microphone so the called party

cannot hear the conversation, press

followed by . MUTE is displayed. Re-enable the microphone using the same key press sequence. The call is muted only for the duration of the current interconnect call.

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