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2. AT&T Merlin - Wikipedia

   en.wikipedia.org/wiki/AT&T_Merlin

   AT&T described the signaling channel on the data pair as “analog multi-line telephone protocol (40 kbps)” but no further details were made available about the protocol. [ 4 ] Attached here is the pin-out diagram of the new "skinny cable", only requiring 4-pair Category 3 cable, to each telephone set while providing the same multiline ...

3. No. 4 Electronic Switching System - Wikipedia

   en.wikipedia.org/wiki/No._4_Electronic_Switching...

   AT&T Long Distance was the primary customer for the switch. Driving development from the customer's perspective was AT&T VP Billy Oliver. [4] Previous tandem switching systems, primarily the No. 4 Crossbar switch, used analog voice signaling. The decision to switch in a digital voice format was controversial at the time, both from a technical ...

4. Remote call forwarding - Wikipedia

   en.wikipedia.org/wiki/Remote_call_forwarding

   To activate Remote Access to Call Forwarding, a subscriber calls a provider-supplied Remote Access Directory Number, enters the telephone number of the line to be redirected along with a personal identification number (PIN), a vertical service code (such as 72# or *73) and the number to which the calls are to be forwarded.

5. T-carrier - Wikipedia

   en.wikipedia.org/wiki/T-carrier

   The T-carrier is a hardware specification for carrying multiple time-division multiplexed (TDM) telecommunications channels over a single four-wire transmission circuit. It was developed by AT&T at Bell Laboratories ca. 1957 and first employed by 1962 for long-haul pulse-code modulation (PCM) digital voice transmission with the D1 channel bank.

6. PIN pad - Wikipedia

   en.wikipedia.org/wiki/PIN_pad

   A PIN pad or PIN entry device is an electronic device used in a debit, credit or smart card-based transaction to accept and encrypt the cardholder's personal identification number (PIN). PIN pads are normally used with payment terminals , automated teller machines or integrated point of sale devices in which an electronic cash register is ...

7. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. Fix problems with the AOL app on Android - AOL Help

   help.aol.com/articles/aol-app-troubleshooting

   Verified for version 4.4 and later. 1. Open the Settings app. 2. Tap Apps. 3. Tap AOL. 4. Tap Force Stop. 5. If prompted, tap Force Stop again to confirm. 6. Relaunch the app and attempt to reproduce the issue.

9. Medium-dependent interface - Wikipedia

   en.wikipedia.org/wiki/Medium-dependent_interface

   With 10BASE-T and 100BASE-TX, separate twisted pairs are used for the two directions of communication. Since twisted pair cables are conventionally wired pin to pin (straight-through) there are two different pinouts used for the medium-dependent interface. These are referred to as MDI and MDI-X (medium-dependent interface crossover).