linksys configuration update for the gain controls

Modified the following file in the configuration editor on the pbx web interface.This will update the default settings on the phones to prevent echoing on the phone.

File that was modified

/etc/asterisk/provisioning/linksys_phone_9xx.cfg

Following entry was updated.

<Server_Type> Asterisk </Server_Type>
<Interdigit_Long_Timer> 5 </Interdigit_Long_Timer>
<Interdigit_Short_Timer> 3 </Interdigit_Short_Timer>
<Handset_Input_Gain> 0 </Handset_Input_Gain>
<Speakerphone_Input_Gain> 0 </Speakerphone_Input_Gain>
<Headset_Input_Gain> 0 </Headset_Input_Gain>