Instead, the subscriber is identified by transmission of an IMSI number, which is stored on a SIM card that can ( in theory ) be transferred to any handset.

Here the light signal from the fiber is translated to a radio frequency electrical signal, which is distributed through coaxial cable to individual subscriber homes.

Due to widespread cable theft in earlier analog systems, in modern digital cable systems the signals are encrypted, and the set-top box must be activated by an activation code sent by the cable company before it will function, which is only sent after the subscriber signs up.

At the optical node, the light beam from the fiber is translated back to an electrical signal and carried by coaxial cable distribution lines on utility poles, from which cables branch out to subscriber residences.

This service is made available, at no additional cost, to Optimum Broadband subscribers, and is available at over 14, 000 locations across Long Island, NY, parts of NJ and CT. Cablevision has reported a double digit reduction in subscriber churn since launching Optimum Wi-Fi, even as Verizon has rolled out FiOS, a competitive residential broadband service in the Cablevision footprint.

In Germany, ISDN is very popular with an installed base of 25 million channels ( 29 % of all subscriber lines in Germany as of 2003 and 20 % of all ISDN channels worldwide ).

In this context, QoS is the acceptable cumulative effect on subscriber satisfaction of all imperfections affecting the service.

If a subscriber dials digit " 8 " ( prefix of the long-distance connection in the national PSTN ) all further processing of the call is a function of a toll exchange.

A subscriber unit, or SU is a broadband radio that is installed at a business or residential location to connect to an access point to send / receive high speed data wired or wirelessly.

Digital subscriber line ( DSL, originally digital subscriber loop ) is a family of technologies that provide internet access by transmitting digital data over the wires of a local telephone network.

In telecommunications marketing, the term DSL is widely understood to mean asymmetric digital subscriber line ( ADSL ), the most commonly installed DSL technology.

Enhanced service is service offered over commercial carrier transmission facilities used in interstate communications, that employs computer processing applications that act on the format, content, code, protocol, or similar aspects of the subscriber's transmitted information ; provides the subscriber with additional, different, or restructured information ; or involves subscriber interaction with stored information.

Flood search routing: In a telephone network, non-deterministic routing in which a dialed number received at a switch is transmitted to all switches, i. e., flooded, in the area code directly connected to that switch ; if the dialed number is not an affiliated subscriber at that switch, the number is then retransmitted to all directly connected switches, and then routed through the switch that has the dialed number corresponding to the particular user end instrument affiliated with it.

* Service Data Function ( SDF ) or Service Data Point ( SDP ) This is a database that contains additional subscriber data, or other data required to process a call.

If they are not removed, as when the subscriber is

In telephony, a main distribution frame ( MDF or main frame ) is a signal distribution frame for connecting equipment ( inside plant ) to cables and subscriber carrier equipment ( outside plant ).

This is likewise also true for digital subscriber lines ( DSL ).

Power-failure transfer is an emergency mode of operation in which one and only one instrument may be powered from each trunk line from the subscriber location to the central office.

" Cable modems that used the RF cable network for the return path were considered ' two-way cable ,' and were better able to compete with the bi-directional digital subscriber line ( DSL ) service.

Initially the LCC was reluctant to agree to the provision of subscriber telephone lines to the estate as it was considered incongruous for a residents of a subsidised housing scheme to be able to afford such a luxury.

In order that a subscriber is able to " latch " on to a visited network, a roaming agreement needs to be in place between the visited network and the home network.

For an ENUM subscriber to be able to activate and use the ENUM service it needs to obtain three elements from a Registrar:

The term was extended when, on 8 March 1963, subscribers in London were able to directly dial Paris using international subscriber trunk dialling.

Even with systems that do not rely on brokers, a subscriber might be able to receive data that it is not authorized to receive.

In May 2009, Comcast was able to meet an agreement with NFL Network, in which the NFL Network agreed to lower their asking price per subscriber.

It requires the active cooperation of the mobile subscriber as well as software that must be able to handle the different operating systems of the handsets.

On slower or congested links ( 622 Mbit / s and below ), ATM does make sense, and for this reason most asymmetric digital subscriber line ( ADSL ) systems use ATM as an intermediate layer between the physical link layer and a Layer 2 protocol like PPP or Ethernet.

By the late 1980s, the cellular industry's subscriber base had grown into the millions across America and it became necessary to add channels for additional capacity.

For several years in the early existence of Al ' Kabor, an " Everquest for Macintosh " subscription did not allow the subscriber to create posts on the official Sony " EverQuest for Macintosh " forums.

There were numerous competing inventions, and 26 patents of dials, push-buttons, and similar mechanisms for signalling which telephone subscriber was wanted by a caller were issued prior to 1891.

Instead telephones were leased in pairs to a subscriber, who had to arrange for a telegraph contractor to construct a line between them, for example between a home and a shop.

Each number consists of an area code — one for each of the large towns and cities and their surroundings — and a subscriber number — the individual number.

In addition to user subscriber information and authentication information, the ( U ) SIM provides storage space for phone book contact.

The system also handles requests for " subscriptions " to Web pages that must be monitored: when the pages change, they must be downloaded by the crawler and the subscriber must be notified.

Providers of pay TV generally on cable television pay the networks a certain amount per subscriber ( the highest charge being for ESPN ).

In the United Kingdom and other parts of the Commonwealth of Nations, the equivalent terms are or were " STD ", for subscriber trunk dialing, and " ISD " for international subscriber trunk dialing.

This refers to the setting up of new services, such as GPRS, MMS and Instant Messaging for an existing subscriber of a mobile phone network, and any gateways to standard Internet chat or mail services.

* To give access to the GSM network for a mobile subscriber in a country that operates the GSM system.

Networks often used fewer than the full NTN digits for routing, and made the spare digits available to the subscriber ( sometimes called the sub-address ) where they could be used to identify applications or for further routing on the subscribers networks.

) The ranges allowed a subscriber to be configured to handle significantly differing numbers of calls in each direction while reserving some channels for calls in one direction.

Additional problems for ONdigital were caused by the choice of 64QAM broadcast mode, coupled with far weaker than expected broadcast power, ( meaning that the signal was weak in many areas ), a complex pricing structure ( comprising many menu options ), a poor quality subscriber management system ( badly adapted from Canal +), a paper magazine TV guide whereas BSkyB had provided an electronic programme guide ( EPG ), insufficient technical customer services, and much signal piracy.