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Alarm system

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Switching alarm systems to IP

Alarm systems that transmit alarms over the traditional fixed network are affected by the switch to IP. Most lines were switched to IP by the end of 2017. At the beginning of 2018, the full migration of customer lines to IP began across Switzerland to help drive the phasing out of the old infrastructure in those areas. Customers who did not migrate to an IP product then should do so as quickly as possible. Swisscom will provide them with support. All alarm systems affected will have to be modernised in advance to ensure their reliable continued operation.

Frequently asked questions

Which alarm systems are affected?

Only alarm systems that currently transmit alarms over the traditional fixed network (analogue or ISDN) are affected. Many systems are not affected because they only transmit alarms over the mobile network. Systems that only sound an alarm locally (using a siren) are also not affected.

As an owner, what must I do?

Contact the installer or supplier of your system as early as possible. They will take the necessary steps to ensure the reliable operation of your alarm system. We would recommend switching the alarm system before the telephony switch.

What about mandatory systems?

Mandatory systems are subject to more stringent standards and can only be switched by the appropriate installation company. Dual transmission over IP and mobile communication channels is required for mandatory systems. Companies within the professional association for telecommunications and security (IG TUS) will advise any affected operators directly and help them with the switch to IP.

What will the switch cost?

Costs will vary depending on the size and complexity of the system. Swisscom is financing the investment for switching its networks and exchanges but the costs for switching alarm systems will be met by the operator.

Transmission solutions for alarm signals

Transmission over the fixed IP network and mobile network

Dual solutions are the most reliable; they transmit information primarily via the fixed IP network but also over the mobile network. This is seen as the most reliable means of transmitting information. It is even more reliable than traditional transmission using the fixed network alone.

Transmission over the mobile network

Transmission over the mobile network meets the necessary requirements in many cases. Many systems are already equipped for this alternative type of transmission, which is easy to implement. Swisscom will continue to support 2G mobile technology (GSM, GPRS, EDGE, CSD) until the end of 2020.

Transmission over the fixed IP network

Transmission over the fixed IP network meets the necessary requirements in many cases. Many systems can be switched to this type of transmission relatively easily.

Analogue-IP converter

Some alarm system providers use additional converters to connect previous systems directly with an IP device.

Modem over VoIP

Tests with manufacturers have shown that many conventional alarm system modems can transmit successfully via the analogue router interface. Some alarm receiving centres will no longer accept analogue calls in the future. This must be clarified with the provider.


Switching special applications to IP

Alarm systems, lift phones, fire alarms: all major, and often life-saving special applications which are affected by the switch to All IP. Unlike fixed network connections, we cannot provide customers with direct support because the contracts for these applications are concluded with the respective providers and not with us. Find out more in our video.

Video total length 02:17 min.