Garmin GTN 725 Pilot's Manual page 419

4. To make a direct call with a keypad, touch the Touchtone
Entry key.
5. After completing the call, touch the End Call key.
190-01007-03 Rev. D
Figure 14-17 Touchtone Entry Pad
Garmin GTN 725/750 Pilot's Guide
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Charts
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
14-13
Index