The iPAQ is a discontinued Pocket PC and personal digital assistant which was first unveiled by Compaq in April 2000.
A toll-free telephone number or freephone number is a telephone number that is billed for all arriving calls. For the calling party, a call to a toll-free number from a landline is free of charge. A toll-free number is identified by a dialing prefix similar to an area code. The specific service access varies by country.
A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing. Telephone numbering plans are defined in each of the administrative regions of the public switched telephone network (PSTN) and in private telephone networks.
Telephone numbers in the United Kingdom are administered by the Office of Communications (Ofcom). For this purpose, Ofcom established a telephone numbering plan, known as the National Telephone Numbering Plan, which is the system for assigning telephone numbers to subscriber stations.
The French telephone numbering plan is used in Metropolitan France, French overseas departments and some overseas collectivities.
Telephone numbers in China are organized according to the Chinese Telephone Code Plan. The numerical formats of landlines and mobile phones are different: landlines have area codes, whereas mobile phones do not. In major cities, landline numbers consist of a two-digit area code followed by an eight-digit inner number. In other places, landline numbers consist of a three-digit area code followed by a seven- or eight-digit internal number. The numbers of mobile phones consist of eleven digits.
South Africa switched to a closed numbering system effective 16 January 2007. At that time, it became mandatory to dial the full 10-digit telephone number, including the zero in the three-digit area code, for local calls. Area codes within the system are generally organized geographically. All telephone numbers are 9 digits long, except for certain Telkom special services. When dialed from another country, the "0" is omitted and replaced with the appropriate international access code and the country code +27.
Numbers on the Irish telephone numbering plan are regulated and assigned to operators by ComReg.
The dialling plan for mobile networks and new landline operators is closed; all subscriber numbers must be dialled in full. For landline numbers starting with 02, the dialling plan used to be open; the trunk digit and area code could be omitted if the caller was in the same area code as the callee. However, starting May 3, 2008, all landline numbers must be dialled in full.
The HTC TyTN is an Internet-enabled Windows Mobile Pocket PC PDA designed and marketed by High Tech Computer Corporation of Taiwan. It has a touchscreen with a left-side slide-out QWERTY keyboard. The TyTN's functions include those of a camera phone and a portable media player in addition to text messaging and multimedia messaging. It also offers Internet services including e-mail, instant messaging, web browsing, and local Wi-Fi connectivity. It is a quad-band GSM phone with GPRS, and EDGE, and a single/dual band UMTS phone with HSDPA. It is a part of the first line of PDAs directly marketed and sold by HTC. On AT&T/Cingular, the TyTN was the successor to the HTC Wizard, known as the Cingular 8125. Also on AT&T, the TyTN was superseded by the HTC TyTN II, known as the AT&T 8925 and the AT&T Tilt.
Telephone numbers in Malaysia are regulated by the Malaysian Communications and Multimedia Commission (MCMC).
The Spanish telephone numbering plan is the allocation of telephone numbers in Spain. It was previously regulated by the Comisión del Mercado de las Telecomunicaciones (CMT), but is now regulated by the Comisión Nacional de los Mercados y la Competencia (CNMC).
Telephone numbers in the United Arab Emirates (UAE) follow a closed telephone numbering plan. The UAE is assigned an international dialing code of +971 by ITU-T. Telephone numbers are fixed at seven digits, with area codes fixed at two or three digits.
The regulation of telephone numbers in Germany is the responsibility of the Federal Network Agency of the German government. The agency has a mandate to telecommunications in Germany and other infrastructure systems.
Telephone numbers in Russia are administered by Roskomnadzor, a Russian federal agency for communication and media. Russia's National Numbering Plan (NNP) is a four-level telephone numbering plan with local, zone, country, and international scopes, implementing a closed numbering plan, in which the number of digits of all national significant numbers (NSN) assigned to subscriber telephones is fixed at ten, with three digits for the area code, and a seven-digit subscriber number which includes a zone code of up to two digits. Internationally, Russia participates in the numbering plans of the International Telecommunication Union (ITU) provided by recommendations E.164 and E.123, using the telephone country code 7.
Slovenia received a new country code following the breakup of the Socialist Federal Republic of Yugoslavia in 1991. Additionally, the Ipko mobile phone company in Kosovo used the +386 country code.
National conventions for writing telephone numbers vary by country. While international standards exist in the form of recommendation E.123 by the sector ITU-T of the International Telecommunication Union (ITU), national telephone numbering plans define the format of telephone numbers assigned to telephones and similar communication endpoints.
A mobile phone is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone. The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which provides access to the public switched telephone network (PSTN). Modern mobile telephone services use a cellular network architecture and therefore mobile telephones are called cellphones in North America. In addition to telephony, digital mobile phones support a variety of other services, such as text messaging, multimedia messagIng, email, Internet access, short-range wireless communications, satellite access, business applications, video games and digital photography. Mobile phones offering only basic capabilities are known as feature phones; mobile phones which offer greatly advanced computing capabilities are referred to as smartphones.
