Only lift phones that currently transfer emergency calls using the conventional fixed network (analogue or ISDN) are affected. Many systems are not affected because they only transmit alarms over the mobile network.
Contact your maintenance agreement provider or the lift manufacturer as soon as possible. They will take the necessary steps to ensure the reliable operation of your lift phone system.
Some lift manufacturers include the modification costs as an additional package in their maintenance agreement. In this case, the owner will not pay the costs associated with the switch. Other manufacturers charge a one-off fee for switching the lift phone system over to the mobile network. In general, the customer pays less because there is no monthly fee for the fixed-network infrastructure and mobile solutions tend to be cheaper.
Mobile solutions are a good option today. For fixed IP telephony, no optimised router with integrated battery is currently available and the function of the IP connection is not always guaranteed in the event of a power failure. However, Swisscom is checking alternatives with a fixed network connection.
M2M (machine-to-machine) agreements can be economically viable from around 50 SIM cards, with individual contract terms and different network connection options and security features.
With M2M, machines are able to communicate with each other and react in real time. Applications for lifts include alarm systems, remote monitoring, remote control and remote maintenance. Lift manufacturers are now able to manage and control traffic and costs (data, SMS and emergency voice calls).
For smaller lift manufacturers or private lift system owners, it is worth considering a NATEL® company subscription.
The latest analyses involving several major lift manufacturers indicate almost universal mobile (GSM/UMTS) coverage (approximately 99,9%). 4G/LTE coverage is currently 97% and is being rolled out even further. Depending on the building infrastructure or location installation of the SIM card casing, an external antenna can be used to improve reception. For the one in a thousand lift locations which has no mobile phone network, an individual solution will be sought with the customer.
The Swisscom mobile phone network is safeguarded by one hour of battery power. Since 1999, lift manufacturers have to provide an uninterruptible power supply (USV, battery) for every new lift system. If a rechargeable substitute power supply is used, there has to be a way to automatically advise the emergency services as soon as the capacity is less than required to operate the emergency system for one hour.
Do you have comments, questions, suggestions, notes or criticisms about switching lift telephones to IP? Join in the discussion - we look forward to your input.
Thank you for your contribution. We publish reader comments from Monday to Friday.