@evandoorbell@ems9999ems1 Before DDD, 211 was common in Panel/crossbar cities to reach LD. In Step-by-step cities, 110 was more common. At the start of DDD, some step cities, like Denver used 112 and later changed to “1”. Others started with “1”.
@evandoorbell Checking other parts of the directory, CA8/228 is not listed in the complete list of COs. Here is a page from 1952 where office names were used. Time of Day is listed under Illinois Bell and does show Cathedral. But other CAs on the same page are Calumet or Canal.
@evandoorbell I just noticed that the Chicago time number is somewhat close to one of the numbers for Time, Inc. (Time Magazine) a few lines up CA5-8822.
@evandoorbell In Atlanta, the time number was always the same but they moved the weather number at least once that I recall. It was in the 76 office and later moved to 871. They also changed the “choke code” for radio stations from “230” in the 70s to “741” later.
@evandoorbell I picked the 1962 directory first. I didn’t look at the other years. Maybe they changed it more than once. Many directories are available here:
https://t.co/ARjABNJoZ4
@evandoorbell Yes, the SP was a thing but I don’t recall how it related to 1A. You are right. The 415-239 sounds too slow. It sounds like maybe 5 per second. But more regular than the irregular sound of later 1As.
@evandoorbell The original scan rate is heard on 0177Z. I don’t recall the year when most of the 1s were replaced with 1A. I definitely felt like it was a downgrade, although the software was probably better.
@AndrewLSeidel Can’t we file a class action law suit against the IRS for not enforcing the tax code on tax exempt churches? We are all paying more tax because of it!
@evandoorbell I didnt experience 1XB or Panel before your tapes. I like the RP sounds and the clanging senders. I remember when I first heard how Panel rings before a busy signal. I thought it was really weird. Definitely let’s you know it’s a Panel.
@evandoorbell 5XB: seemed fast and efficient compared to step. Pleasant humming/whiring sound during dialing. Pleasant and reassuring call completion sounds. AMA made toll calls go through much faster without a CAMA operator.
@evandoorbell 1ESS: “TAH-TICK” for everything. Very clean, including pure analog tones. Only switch type that cuts off your last digit on a Touch Tone phone (mainly on intraoffice calls). First switch where we heard modern busy and ring tones.