Analog Display Services Interface

Analog Display Services Interface

Analog Display Services Interface is a telephony technology that is currently used in POTS or computer-based PBX telephone service. It works in conjunction with a screen-based telephone ("screenphone") or other compatible CPE to provide the user with softkey access to telephone company or internal PBX custom calling features. It is an analog service because it uses analog Frequency Shift Keying (FSK) technology to interact with an LCD screen via short, low-baud rate, downloads to refresh and re-program softkeys in real-time.

The technology introduced and rolled out to RBOCs from Bellcore in April of 1995, (very soon after the introduction of CLASS-based services through ESS), was marketed by the RBOCs who implemented it, as a way to streamline all available custom calling options through the use of a screen-based telephone; giving Residential and Small Business telephone subscribers PBX-like functionality at home or in SOHO locations at a significantly lower cost. The service debuted before the onslaught of PCS and VOIP-based telephony technologies became available and was originally slated to also work in conjunction with other types of services such as Enhanced Directory Assistance, telephone banking, movie theatre ticket sales, and other services that could interact with an LCD-screen.

Some of those services did become available later, though, not at the dramatic increase the US-based telephone companies had hoped. Canadian telephone companies such as Telus and Bell Canada, however, had much better luck implementing more ADSI-based services with other industries such as banking, and still markets the service actively (as of 2005).

The service is marketed at telephone customers who subscribe to the majority of CLASS-based services offered by their local telephone company (such as caller ID, Call Return, etc) by the customization of a telephone capable of providing one-touch access to these features. This greatly increases customer usability by alleviating the need to memorize dialing codes such as *69.

Additionally, a few RBOCs introduced new features such as Call Waiting Deluxe and Message Waiting Indicator to work exclusively with ADSI telephones. The former being perhaps the most involved example of ADSI capabilities and the latter being an example of Visual FSK; another new technology available through CLASS.

The RBOCs who offer this service also restructured their billing of these services into value-based "packages" to stimulate customer interest.

ADSI-compatible equipment

U S West Communications, the first local RBOC to offer this service, marketed it as "Home Receptionist" service. Home Receptionist service included a Nortel Powertouch (or Vista) 350 screen-based telephone and "line-provisioning" service to make it work. This service is still offered by Qwest Communications (the successor to US West), BellSouth and SBC Communications; though the service has different marketing names.

Nortel discontinued the x5x telephone line and introduced a more streamlined version called the 39x-line and then later the 48x-line in 1998. CIDCo and Cybiotronics later introduced their own lines of screenphones after the original Nortel Patent expired.

Nortel also later sold off its CPE line to Aastra Technologies in 1999 and Aastra continues to market these telephones through various channels.

External links

* [ ADSI Technical Information by Telcordia ]
* [ Aastra Telecom]
* [ Black Dolphin Telecom, specialists in ADSI scripting]

Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • analog display services interface — (ADSI)    A telecommunications standard, developed by Bellcore, for communicating with telephones supporting a display screen …   IT glossary of terms, acronyms and abbreviations

  • Caller ID — (caller identification, CID), also called calling line identification (CLID) or calling number identification (CNID) or Calling Line Identification Presentation (CLIP), is a telephone service, available in analog and digital phone systems and… …   Wikipedia

  • ADSI — is an acronym that can stand for:*Acting Detective Superintendent *Active Directory Service Interfaces; a technology introduced by Microsoft in the Windows 2000 Operating System *Analog Display Services Interface; the application used by many… …   Wikipedia

  • Integrated Services Digital Network — ISDN Telefon Integrated Services Digital Network (ISDN) ist ein internationaler Standard für ein digitales Telekommunikationsnetz und lässt sich sinngemäß als diensteintegrierendes digitales Netz übersetzen. Über dieses Netz werden verschiedene… …   Deutsch Wikipedia

  • ADSI — abbr. Active Directory Service Interface (MS, COM, AD) comp. abbr. Active Directory Service Interface (Microsoft) comp. abbr. Analog Display Services Interface …   United dictionary of abbreviations and acronyms

  • Call Waiting Deluxe — is the Bellcore (now Telcordia Technologies) term for Type II caller ID with Disposition Options. This CLASS based POTS telephone calling feature works by combining the services of call waiting with caller ID but also introduces an options… …   Wikipedia

  • аналоговый интерфейс индикации услуг — (МСЭ Т Н.248.23). [http://www.iks] Тематики электросвязь, основные понятия EN analog display services interfaceADSI …   Справочник технического переводчика

  • ADSI —    See analog display services interface …   IT glossary of terms, acronyms and abbreviations

  • Abkürzungen/Luftfahrt — Dies ist der erste Teil einer Liste der Abkürzungen und Akronyme, wie sie in der Luftfahrt und Militärluftfahrt verwendet werden. Liste der Abkürzungen Teil 1 A A (AA; AB; AC; AD; AE; AF; AG; AH; AI; AK; AL; AM; AN; AO; AP; AQ; AR …   Deutsch Wikipedia

  • AFWA — Dies ist der erste Teil einer Liste der Abkürzungen und Akronyme, wie sie in der Luftfahrt und Militärluftfahrt verwendet werden. Viele Abkürzungen werden einfach durch Weglassen der Vokale gebildet. Liste der Abkürzungen Teil 1 A A (AA; AB; AC;… …   Deutsch Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”