
Airfone was an air-ground radiotelephone service developed by MCI founder John D. Goeken, and operated under the names Airfone, GTE Airfone, and Verizon Airfone. Airfone allowed passengers to make telephone calls in-flight. Airfone handsets were often located in the middle airliner seatbacks, with two handsets per row for 6-wide coach seating configurations, and more or less depending on the aircraft layout and fare class. First class cabins typically had one handset per seat. Some planes had one or more bulkhead mounted phone stations with cordless handsets that the passengers could use, instead of the multiple wired handsets. Airfone phone calls were usually quite expensive compared to ground-based telephone calls, costing $3.99 per call and $4.99 per minute in 2006.

Jott was a web-based voice-to-text transcription service which allowed its users to call a toll-free telephone number and speak for up to 30 seconds. The speech was then transcribed to text using a combination of computerized speech recognition software and human transcribers who worked in a "sterile environment which also includes medical dictation." The message could be sent back to oneself, turned into a reminder, sent to a contact or group, or sent to a third-party "Jott link" such as LiveJournal.
A public-safety answering point (PSAP), sometimes called "public-safety access point" is a call center where emergency calls initiated by any mobile or landline subscriber are terminated. It can also happen that when 112 is dialed in then a logic is implemented by mobile or network operators to route the call to the nearest police station. It is a call center in almost all the countries including Canada and the United States responsible for answering calls to an emergency telephone number for police, firefighting, and ambulance services. Trained telephone operators are also usually responsible for dispatching these emergency services. Most PSAPs are now capable of caller location for landline calls, and many can handle mobile phone locations as well, where the mobile phone company has a handset to location system. Some can also use voice broadcasting where outgoing voice mail can be sent to many phone numbers at once, in order to alert people to a local emergency such as a chemical spill.

A telecommunications relay service, also known as TRS, relay service, or IP-relay, or Web-based relay service, is an operator service that allows people who are deaf, hard of hearing, deafblind, or have a speech disorder to place calls to standard telephone users via a keyboard or assistive device. Originally, relay services were designed to be connected through a TDD, teletypewriter (TTY) or other assistive telephone device. Services gradually have expanded to include almost any real-time text capable technology such as a personal computer, laptop, mobile phone, PDA, and many other devices. The first TTY was invented by deaf scientist Robert Weitbrecht in 1964. The first relay service was established in 1974 by Converse Communications of Connecticut.

A telephone booth, telephone kiosk, telephone call box, telephone box or public call box is a tiny structure furnished with a payphone and designed for a telephone user's convenience; usually the user steps into the booth and closes the booth door while using the payphone inside.

A telephone card, calling card or phonecard for short, is a credit card-size plastic or paper card, used to pay for telephone services. It is not necessary to have the physical card except with a stored-value system; knowledge of the access telephone number to dial and the PIN is sufficient. Standard cards which can be purchased and used without any sort of account facility give a fixed amount of credit and are discarded when used up; rechargeable cards can be topped up, or collect payment in arrears. The system for payment and the way in which the card is used to place a telephone call vary from card to card.

Telephone tokens were token coins once widely used for making telephone calls from public telephones in place of ordinary coins. They were also sometimes used as a medium of exchange and as a collectible. Telephone tokens were once widely used in Europe, Israel, Japan, and South America, but have since been largely superseded by telephone cards and credit cards.