"The phone is a remarkably complex, simple device, and very rarely ever needs repairs, once you fix them." - Dan/Panther
Started by bellsystem, June 29, 2017, 11:37:26 AM
Quote"Since most Western Electric multi-line/key telephones only support 5 lines..."
Quote"The problem is that these are likely to be the phones with the most incoming calls. Given that I plan on having phones all over the house, I'd like to be able to take an incoming call for one of these lines when I'm not actually in the office the phone is in (or either office, with 1005)."
Quote"To complicate matters, I would like the privacy-line telephones to be used for the primary phones so that if a call is answered on the primary telephone (with the exception of 1005, since there would be two, which is not possible for a privacy switch), the user at that station can turn the switch and prevent anyone from using any of the key telephone sets (multi-line sets) around the house to listen in. If a call is answered on one of those five lines using a Multi-Line telephone, then someone else can still use another key system telephone, or the primary telephone, to listen in."
Quote"...since there would be two, which is not possible for a privacy switch..."
Quote"For 1005, since there would be two primary phones, I'd splice/duplicate the wiring closer to the PBX and run wire to each of the primary phones but also the multi-line phones directly - thus there would be no way to enable privacy on the main line."
Quote"So in the end, each of the multi-line telephones would look something like this one, only with the actual extension numbers: http://i.ebayimg.com/images/g/yJwAAOSwdjNZCAjb/s-l1600.jpg"
Quote"I believe this would require running the line for those five extensions to the five sets first (splicing the line for 1005, and running it to the two phones in both offices). From the primary phones, I would need to run wiring back into some sort of splitter for key systems, and then combine one of each of the lines to run to each of the multi-line telephones."
Quote"...some sort of splitter for key systems,..."
Quote"Is there a commercially available solution out there to accomplish what I have described, or would this all have to be custom-wired?"
Quote"I don't imagine there are too many setups out there this complicated, but if there are, I see no need to reinvent the wheel."
Quote"I don't think there are any multi-line phones that look like the 554 or the 2554..."
Quote"I WOULD want someone to be able to pick up another extension and listen in or join the conversation. Is that supported on a per-line basis or will it no allow two telephones connected to the same line to be off-hook at the same time?"
Quote"Do you have links to those manuals? Are there part of the Bell System Practices?"
Quote"One of my projects for the next couple days is downloading all the Bell System Practices."
Quote from: bellsystem on June 29, 2017, 01:48:38 PMI didn't mean MOST Western Electric phones, my bad. I meant all the phones that are multi-line that are the same STYLE as the 500 and 2500 telephones. I don't think there are any multi-line phones that look like the 554 or the 2554...
Quote"I am somewhat familiar with RJ21 - the connector used by multi-line phones."
Quote from: bellsystem on June 29, 2017, 03:54:51 PMFrom Wikipedia: https://en.wikipedia.org/wiki/1A2_Key_Telephone_SystemRJ21 — the 25-pair connector used for 1A2 systems
Quote from: rdelius on June 29, 2017, 10:19:20 PMThe limits on the 1A2 are number of lamps that the power supply can handle.Too many will cause issues