Most of the United areas in the gorge that Mark Bernay went to in the late 60s were I.I.R.C. WE step and maybe a few XYs around (need to review oregon2 again, I guess), so chances are White Salmon was also a WE or a Stromberg with a nonstandard tone arrangement.
Maybe. I don't suppose ITT made real step switches, did they? I've never heard of United using Rotary.
I really must plan a phield trip to Gresham one of these days, any suggestions for payfones there that are reasonably easy to access/record off of?
There were a couple of AE-120 fortresses at an Albertson's on Stark. There's also a community college there with Millenniums in the library/quad a block away. If I remember right, there's some more at a Safeway off I-5 in the same neck of the woods. Most MAX stops naturally have Protel COCOTS near them. The stops aren't particularly pleasant places to be (but by no means unsafe), but there's an okay one at the shopping center near the City Hall. There was a fortress in a Borders back when they were still a thing. Chances are, there might be another one in one of the stores.
There's at least one more fortress I vaguely remember seeing somewhere close to where Gresham splits off to eastern Portland. I don't remember where exactly, but I think it was a particularly sketchy looking strip mall. Most of the times I went by it, I either knew I had a chance to play with other phones on the switch, or wasn't in a mood to stick around the city, so I never played with it.
Anyway, good luck! If you want to compare it to some of the other GTD-5s, there was an ACTS phone at one of the Beaverton libraries a good while back. Tigard/Tualitin/Beaverton/whatever other sprawly GTE cities there are tend to be harder places to find CO-owned payphones, though. If you happen to find yourself near Wilsonville, the Fry's has a fortress near the bathroom. It's served out of a remote off one of the Beaverton 5Es, though.
By the way, here's that DMS-100 tone recording if anyone's interested; http://thoughtphreak...rent_tones.flac
EDIT: If you don't mind working with a Millennium, the best place to look might be the one at the community college library; the lobby is indoors, and the night I was there, foot traffic wasn't too dense. Just bring a cell phone, and something that works well as a tone dialer. The ex-GTE Millenniums love spoiling all manner of fun with their dialplans, but if you make an incoming call to one, hang up on it, and pick up the phone sometime after it stops ringing but before the phone realizes it isn't there anymore, you can get a dialtone from the switch and make it do whatever the hell you want. Just beware that the phone will hang up if it sees polarity reversal.
Edited by ThoughtPhreaker, 05 August 2015 - 01:46 AM.