Product overview - Alphatech (en)

DoorPhones - Button doorbells with the possibility to connect an analog telephone line or computer network with SIP protocol for VoIP telephony or the connection to the GSM phone network

GSM gates - allow compensation for land line telephone GSM networks. Depending substituted solid lines are distinguished gate analog or ISDN or SIP (VoIP)
Main advantages:
- Saving the cost of the call when connection to GSM network
- SMS (text mail)
- Call forwarding to mobile phone
- Wireless (replacement of metallic lines)

Lift communicators - communicator to the cabin lift with access to an analog telephone line or GSM network

Other products - There is a wide range of PBX via remote switches, modems, and code lock system to search for cars.