The landlines here, at least since digital switching rolled out beginning in 1980, were split 50:50 between Ericsson and Alcatel systems. Before that we used Ericsson crossbars and code switches assembled and localised in Ireland and Strowger step-by-step made mostly by STC I'm England.
In Europe generally in the digital era: Ericsson AXE. Alcatel's E10 and S12 (originally ITT System 12), Siemens EWSD (originally developed by Siemens, Bosch and DeTeWe), Nokia DX and then you've smaller national ones like : GPT/Plessey Marconi System X (UK), Thomson MT 25 (France), Italtel (Italy) and a few others. You'd find some non European, mostly Nortel, Lucent, Fujitsu and NEC equipment in some maskers too.
In recent years Huawei is the BIG challenger to those companies.
For phones here in Ireland they were mostly made by Northern Telecom, including an Irish version of their interpretation of the classic 500 phones, LM Ericsson, Kirk Telecom of Denmark who made some very cool ones, Hagenuk or Germany and and the UK's GEC and STC.
I just miss the old classic vibe the old marketing had. Yea, it cost ridiculous money to make a call compared to today and there was no competition, but it still had a sort of "solid" high quality feel
1987 Irish Telecom advert:
Lots of Irish locally made Northern Telecom Harmony phones.
I still have one in daily use! It's over 30 years old.