SyncByte Solutions

SyncPhone ISDN Application

Mac OS X Software Suite for Siemens Gigaset ISDN phones


Upcoming SyncPhone ISDN Version

The development of the initial final version of SyncPhone ISDN is almost completed and is excepted to be released end of 2009. The software will support Siemens Gigaset SX353, Gigaset SX303, Gigaset 307x, Gigaset 4175 and compatible Telekom phones, as long as they allow connection via USB.

Many new features have been added, one of the most requested feature was Caller-ID detection with integrated Address-Book support:


New features of SyncPhone ISDN:

  • Identifying callers by number and Address-Book entry
  • Accept, reject or ignore incoming calls
  • Manage phone logs for incoming and out going calls, even if your computer was off.
  • Configure your phone via preferences pane
  • Dial numbers directly from Address-Book and from any application in Snow-Leopard (OS X 10.6)
  • Advanced support for international dialing prefixes
  • Support for a wider range of ISDN phones
  • Supports Apple-Events to allow other applications to dial via SyncPhone ISDN
  • Synchronize Address-Book and the phone's internal phone-book


More details will be announced with the release of the final version. Thanks for your interest!




SyncPhone Address Book PlugIn (deprecated)

Mac OS X - Gigaset SX 353 ISDN - Address Book Plug-In - Version 0.7 Beta


What is SyncPhone-PlugIn

This plug-in will allow you to dial any selected phone number from your Address Book directly with an USB connected Siemens Gigaset SX 353 ISDN phone. Simply left click on any phone number label within your Address Book, choose "Dial with Gigaset ISDN..." from the context menu and the phone will dial the selected number for you.


Installation and Removal

Copy the file SyncPhonePlugIn.bundle into the folder: /Library/Address Book Plug-Ins. To uninstall it, simply trash the file: SyncPhonePlugIn.bundle.


Important Notice

This beta version software is still under development and has not been tested with different configurations. You use it at your own risk! Please report any error or unexpected behavior to:


Version History

  • Version 0.5b
    • Inital release.

  • Version 0.6b
    • Added support for international phone number formats.
    • Usage time limit has been removed.
    • Various internal changes

  • Version 0.7b
    • Snow Leopard and 64Bit compatibility.


System Requirements

  • Mac OS X 10.4 or higher (PPC or Intel Mac)
  • Gigaset SX 353 ISDN phone


Download SyncPhone ZIP-Package (Universal 32/64Bit binary): SyncPhonePlugIn.zip [20 KB]

© 2009 by SyncByte Solutions.