The guide at the folllowing link will help you to setup the following Siemens/Gigaset devices for use with sipgate team:
N300AIP, C450 IP, C470 IP, S450 IP, S675 IP, S685 IP, A580 IP
The settings menus for other Siemens/Gigaset models won't vary greatly.
To setup sipgate team Presence (BLF) with Gigaset DE900 Pro and DE700 IP Pro phones please click on the following link:
Presence/BLF with the Gigaset DE900 Pro and DE700 IP Pro
To test your configuration please see this Help Article:
Testing your VoIP Phone's Configuration
If you run into issues registering your phone online, with placing calls, or with audio quality the following Help Articles offer useful troubleshooting advice: