User Guide

105
3. Configure the settings listed in Table 12 on page 105.
4. Tap Apply to accept your changes or Undo to start again.
Audio settings
Use the following procedure to configure Audio settings on the MCC 3100
for Windows Mobile Dual Mode.
1. From any screen, select Tools > Settings.
The MCC 3100 for Windows Mobile Dual Mode screen appears.
2. Tap the Audio tab.
The Audio panel appears.
Table 12: Firewall configuration fields
Pinhole Timer
(seconds)
If you select STUN as the Discovery Method,
set the Pinhole Timer to a value between 10
seconds and 3 minutes to keep the firewall
port open.
If you select None as the Discovery Method
and you clear Enable WiFi Standby in the
Advanced settings, set the Pinhole Timer to a
value between 30 seconds and 3 minutes.
This maintains a permanent WiFi connection,
which is necessary if you want to make and
receive WiFi calls at any time.
Whenever possible, use a higher value (2
minutes or more) to conserve battery life.
Discovery Method Select None or STUN.
If STUN is selected, Stun Server and Stun
Port fields appear.
Stun Server Enter the hostname or IP address of the Stun
Server
Stun Port Enter a port number. Default is 3478