Upgrade package 4: From old to something to behold

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A simple swap: the Siedle in-house telephone

Has your in-house telephone seen better days? Then simply replace it. The good news: This can be done without complex installation work. The Siedle HTA 811 replacement telephone fits seamlessly into an existing system.

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The benefits of a Siedle in-house telephone

Siedle IQ HTS plus app

Go mobile with ease

Do you want mobile door communication, but your old in-house telephone is not suitable? You can quickly upgrade, by replacing it with a Siedle IQ in-house telephone. Install the Siedle app, set up the connection and use the digital functions – smartphone as a doorbell and key, smart home commands and much more.

Siedle in-house telephone

Ideal for these situations

 

  • One or more in-house telephones in the building are faulty.

  • Enhancing the interior and technology.

  • Access to mobile door communication - for door intercom systems from 1952 onwards

 

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Modernisation made easy

Cover old drill holes or openings in the wall – Siedle’s retrofit panels mean there’s no need for any plastering or painting. They ensure tidy, precision modernisation of the in-house telephone. Take a look at our video and see just how quick and easy it is.

Siedle IQ HTS plus app

Go mobile with ease

Do you want mobile door communication, but your old in-house telephone is not suitable? You can quickly upgrade, by replacing it with a Siedle IQ in-house telephone. Install the Siedle app, set up the connection and use the digital functions – smartphone as a doorbell and key, smart home commands and much more.

Siedle in-house telephone

Ideal for these situations

 

  • One or more in-house telephones in the building are faulty.

  • Enhancing the interior and technology.

  • Access to mobile door communication - for door intercom systems from 1952 onwards

 

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