> Bell System Practices, Telephone Set Number Reference

Bell System Practices

Telephone Set Number Reference

By Cowboy Frank

Indicates I have at least one in my collection -> ¤
Page Under construction

Note: I'm in the middle of recoding this page completely to simplify the code.
Slow process so it will take a while. In the meantime everything is still functional. (No, the photo is not me, but I wish it had been.)

Trimline Bases
AC1 ¤ Trimline wall telephone base
AD1 ¤ Trimline desktop telephone base
200 series phones
211 ¤ Rotary dial Hand Telephone using a subset
220 A ¤ Rotary dial Trimline Handset
226 A ¤ Rotary dial Trimline Handset with internal amplifier
500 series phones (Rotary dial or blank)
500 A/B factory wired for use with 4 wire private line circuits and type 3 speakerphone
500 A/D Desk phone with 311A equalizer as part of 425A network
500 C/D ¤ Rotary desk set with or without dial
500 DM ¤ Rotary Desk set with dial, modular
500F 500 type rotary desk set with lift to talk plunger on left switchook, Used on some party lines
500 FM
500 HP with 6-8v dial lamp (mushroom)
500J/K
500 L/M wired for 1A1-1A2 key system (4 cond cord)
500 MM
500P with 6-8v dial lamp
500R/S factory wired for speakerphone
500 SM
500 U and 6-8v dial lamp, 584C key switch which will give reduced night light when turned (Mushroom)
500 W/Y with neon dial lamp
500 WM/YM
501 equipped with tube assembly for party line ringer control
501 A/B
501 C/D
501 CM/DM
501 F ¤ Used on party lines, lift plunger to talk
501 FM ¤
501J/K ¤
501P ¤ with 6-8v dial lamp
501U ¤

502 ¤ with exclusion key
502A/B ¤
502BM ¤
¤
¤
503C ¤
503CM ¤
510 ¤ 2 line with signal key (no exclusion key)
510A ¤
510B ¤
510E ¤
510F ¤
510FM ¤
511 ¤ 2 line with signal key and exclusion key
511A/B ¤
511C/D ¤
511F ¤
511H ¤
511HM ¤
513B ¤
514B ¤ with headset jacks and an on-off function (turn) and flash function (push) for operator call and indicator lamp
514BM ¤
515B ¤ 2 line rotary with hold
515BM ¤ 2 line rotary modular with hold
516B ¤ with turnkey to activate external make-busy circuit and illuminating a lamp on the set. Initial use with 802A hotel PBX system

525A ¤
526A/B ¤
526AM/BM ¤
554A/B ¤
554 ¤
554F ¤
554AM/BM ¤
554AMP/BMP ¤
555 ¤ 2 line with signal key and exclusion key (hold plunger on top of phone)
555B ¤
555BM ¤
555BMP ¤
556A/B ¤
558 ¤ 2 line with signal key and exclusion key (hold plunger on top of phone)
558A/B ¤
558C/D ¤
558F ¤
558FM ¤
570 ¤
581A ¤
600 series phones (Rotary)
660A1 ¤ 1 line card dialer
660A1M 1 line card dialer, Modular
700 series phones (Rotary)
700 Princess Phone
701B
701D
702B
702BM
702D
711B
712B
712BM
713B
713BM
750BM ¤ 750BM Panel Phone
751
753A
753B
800 series Design Line® phones (Rotary)
881A100
881B100
881C100
881A101
881A102
881A103
881A104
881A105
881A106
881A107
881A108
881B101
881B103
881B102
881B104
881B105
881B106
881B108
881B109
881B110
881C101
881C105
881C105
881C107
881C108
881C109
881C110
881C111 Snoopy phone set
882A200
900 Design Line® series phones (Rotary)
900A Design line "Exeter" phone
900B Design line "Exeter" phone
902A1 Design line "Sculptura" (donut) phone
910A Design Line "Stowaway" phone
911A1
921A Design Line "Accent" phone
921B
930A Design Line "Elite I" phone
930B Design Line "Elite I" phone
940 Design Line "Celebrity" phone
950A Noteworthy® telephone set
951A1-03
952A1-03
1200 series phones (10 button Touch Tone)
1220A ¤ Trimline® Handset
1500 series phones (10 button Touch Tone)
1500D desk set
1500M
1500S
1500Y
1502B
1510F
1511B
1511D
1511F/H
1514B
1554B wall phone
1558B
1558D
1700 series phones (10 button Touch Tone)
1702B ¤ Princess Phone
1702D
1712B
1713B
1750A/B
1750C
1751D
1753A
1753B
1800 series phones
D-180574 Coin Decreator telephone set
2200 series phones (12 button Touch Tone)
2220B ¤Trimline Handset (round buttons)
2220C ¤Trimline Handset (square buttons)
2226ATrimline Handset (square buttons) with internal amplifier
2226BTrimline Handset (round buttons) with internal amplifier
2500 series phones (12 button Touch Tone)
2500D
2500DM ¤ Modular desk telephone
2500DMG
2500MM
2500S
2500SM
2500Y
2500YM
2502B
2502BM
2503C desk set for use with DATA-PHONE services
2503CM modular desk set for use with DATA-PHONE services
2510F
2510FM
2511F ¤ 2 line desk set wired for speaker phone, with exclusion key
2511H
2511HM
2514B
2514BM ¤ desk set for use with an opeator headset
2514BMW ¤
2515B ¤ 2 line desk set with exlusison key NOTE:
2515BM ¤ 2 line modular desk set with exlusison key
2526B
2526BM
2554B
2554BM ¤Modular wall phone
2554BMP
2554BMPG
2555B 2 line wall phone
2555BM 2 line wall phone modular, with local signaling circuit (push line slector button)
2555BMP ¤2 line wall phone modular (no local signaling circuit)
2558D ¤ 2 line wall phone for use with 1A2 Key System
2558DM ¤ 2 line wall phone for use with 1A2 Key System with 50 pin Amphonal connector and modular handset
2563HBM ¤6 button, 5 line office phone wired for headset use
2565HK 6 button, 5 line office phone wired for speakerphone (non-modular)
2565HKM ¤6 button, 5 line office phone wired for speakerphone
2565HKMS ¤6 button, 5 line office phone wired for speakerphone
2600 series phones (12 button Touch Tone)
2660A1 ¤single line card dialer
2662 5 line office phone card dialer wired for speakerphone
2664AW ¤5 line office phone card dialer for use with headset
2700 series phones (12 button Touch Tone)
2702B ¤ Princess Phone
2702BM Princess Phone, modular
2702BMG ¤ Modular Princes phone with polarity guard
2702D
2702DM
2712B
2712BM
2713B ¤2 line Princes phone
2713BM ¤2 line Princes phone modular
2750 ¤ Panel Phone
2750A/B
2750AM/BM Panel phone with modular connector to line cord
2751C
2751D
2753A
2753B
2800 Design Line® series phones (12 button Touch Tone)
2830CM ¤ 10 button, 9 line office phone
2881A100
2881B100
2881B109
2881C100
2881C109 Micky Mouse
2881A101
2881B101
2881C101
2881B110
2881C110
2881C111
2900 Design Line® series phones (12 button Touch Tone)
2900A Exeter
2900B Exeter
2902A1 ¤Sculptura (donut)
2910A Stowaway
2911A1 Telstar
2921A Accent phone
2921B Accent
2930B Elite II
2931B35 Commenorative
2950A Noteworthy

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First posted Jan 30, 2012
Last update Feb 26, 2016