Compatible telephones
The exchange telephone HTA 811 replaces eight former generations of Siedle in-house telephones installed using what was known as the 6+n system. The overview illustrates what the compatible models look like and from when they were produced.
LN 7145, LN 7150, S 7150 (alle Typen sind technisch und funktional gleichwertig)
© 2020 S. Siedle & Söhne OHG