If you’ve read through this blog you might already know something about the Dutch PTT trio that was marketed in the aftermath of the Ericofon lifecycle. Initially it was planned to sell the Ericofon in The Netherlands from 1979 to 1981, but that turned out to be 1985 in the end. This was not because of the popularity of the phone, but due to the fact that the Dutch PTT had a huge stock that needed to be sold. And that was not so easy so 4 more years were needed ‘to get rid’ of it.
The Ericofon was not very popular in The Netherlands, but the PTT (state owned telecom operator) needed an already existing model that could fill the gap between the good old Ericsson T65 and its successor, the Ericsson Diavox. The T65 was at the end of its life and the latter was to be issued in 1981 to celebrate 100 years of telephony in The Netherlands. So the company chose an existing phone but managed to create some unique models in the limited time frame they had. The colors red and brown are unique in the world and the white is similar to the Taj Mahal. However, the black dial face for all 3 colors is unique as well.
In this post is a scan of the original leaflet that was made by the PTT. The sharp reader of this blog can see that the pictures date from before 1979. The black dial face made in the first batch of 1978 was not yet foreseen with the letters PTT. Instead a sticker on the inside of the shell was placed with the same indication.
Not only the outside of the dutch models are unique, also the inside was specifically designed for this operator. A typical printed circuit board with the color coding of the wires printed completes this phone. Although this chassis will work in most countries, it complies to the specific (high) demands from the dutch operator on network connectivity.
Where the speaker is standard and glued into the ear-piece, the microphone is also typical PTT.