To register your Gigaset A116 phone with the base station, follow these steps:

1. connect the base station: make sure that the base station is correctly connected and switched on.
2. register the handset: Place the handset in the base station to register it automatically. If this does not happen automatically, check that the base station and handset are connected correctly.
3. check the connection: After registration, the handset should have a stable connection to the base station. Check this by making a test call.

If you have problems, check the batteries and make sure the handset is switched on. You can find more information in the user guide, which you can download online.