User's Guide Part 1

17Calling
To answer a call
• Press .
To reject a call
• Press .
To change the ear speaker volume
during a call
• Press the volume key up or down.
To mute the microphone during a call
1 Press and hold down .
2 Press and hold down again to
resume.
To turn the loudspeaker on during a
call
• Select SpkrOn.
To view missed calls from standby
• Press Calls or press and scroll to
the New events tab and select a
number.
• Press to open the call list.
Networks
Your phone switches automatically
between GSM and 3G (UMTS)
networks depending on availability.
Some network operators allow you to
switch networks manually.
To switch networks manually
1 From standby select Menu > Settings
> the Connectivity tab > Mobile
networks > GSM/3G networks.
2 Select an option.
Emergency calls
Your phone supports international
emergency numbers, for example, 911
and 112. These numbers can normally
be used to make emergency calls in
any country, with or without the
SmartChip inserted, if a 3G (UMTS) or
GSM network is within range.
To make an emergency call
• From standby enter 911 or 112 (the
international emergency numbers) and
press .
To view your local emergency
numbers
1 From standby select Menu > Address
Book.
Do not hold your phone to your ear when
using the loudspeaker. This could
damage your hearing.
Mobile Networks is Smartchip
dependent.
In some countries, other emergency
numbers may also be promoted. AT&T
may therefore have saved additional
local emergency numbers on the
SmartChip.