Workbench 1.0
Workbench 2.04

These GUIs don’t have this feature.

DeskTop 1.1
GS/OS 5.0.4
GS/OS 6.0.1

These GUIs don’t have this feature.

BeOS R5.0.1 PE

This GUI doesn’t have this feature.

CDE 1.5 in Solaris 9

This GUI doesn’t have this feature.

GEOS 2 for C64
GEOS 2.1 for Apple II
GeoWorks Ensemble 2.0
NewDeal Office 3 Eval.
BreadBox Ensemble Lite

These GUIs don’t have this feature.

GNOME 2.2.0 in RedHat 9

This GUI doesn’t have this feature.

IRIX 5.3

This GUI doesn’t have this feature.

Lisa OS 1.0
Lisa OS 3.1

This feature is not yet documented on this site.

System 1.1
System 3.0
System 4.2
System 7.0
System 7.5.3
Mac OS 8.0
Mac OS 9.0
Mac OS X DP
Mac OS X DP 2
Mac OS X DP 3
Mac OS X DP 4
Mac OS X Public Beta
Mac OS 10.0.4
Mac OS 10.1
Mac OS X Jaguar
Mac OS X Panther

These GUIs don’t have this feature.

OPENSTEP 4.2
Rhapsody DR2

These GUIs don’t have this feature.

MS OS/2 1.30.1

This feature is not yet documented on this site.

OS/2 2.1
OS/2 Warp 3
OS/2 Warp 4

These GUIs don’t have this feature.

QNX 6.2.1 NC

Phone dialer in QNX 6.2.1 NC (Photon Dialer)

ArthurOS 1.2
RISC OS 3.11
RISC OS 3.7

These GUIs don’t have this feature.

Sibo/Psion Series 3a
Sibo/Psion Siena

These GUIs don’t have this feature.

EPOC R5/Psion Revo

Phone dialer in EPOC R5/Psion Revo with thanks to Daniel Beardsmore This application is usually used not for dialing, but for synchronizing contacts between a phone and the contact database in the OS.

EPOC R5/Psion Series 7

This GUI doesn’t have this feature.

Windows 1.01
Windows 2.03
Windows 3.0
Windows 3.1
WfW 3.11
Windows NT 3.1 Workstation
Windows NT 3.51 Workstation

These GUIs don’t have this feature.

Windows 95
Windows 95B

Phone dialer in Windows 95 (Phone Dialer)

Windows NT 4.0 Workstation
Windows NT 4.0 Server

Phone dialer in Windows NT 4.0 Workstation (Phone Dialer)

Windows 98

Phone dialer in Windows 98 (Phone Dialer)

Windows 98 SE

Phone dialer in Windows 98 SE (Phone Dialer)

Windows 2000 Pro
Windows 2000 Advanced Server

Phone dialer in Windows 2000 Pro (Phone Dialer)

Windows Me

Phone dialer in Windows Me (Phone Dialer)

Whistler 2257

Phone dialer in Whistler 2257 (Phone Dialer) Whistler 2257 was equipped with Phone Dialer, but it didn’t make it to the final release of Windows XP.

Windows XP Pro
Windows Server 2003 Web
Longhorn 4015

These GUIs don’t have this feature.