Search results
Results From The WOW.Com Content Network
Example of a mobile phone jammer, produced by Jammerspro. A mobile phone jammer or blocker is a device which deliberately transmits signals on the same radio frequencies as mobile phones, disrupting the communication between the phone and the cell-phone base station, effectively disabling mobile phones within the range of the jammer, preventing them from receiving signals and from transmitting ...
The number for this facility varies with country and provider: United States and Canada: Vertical service code *69; 1169 on rotary phone/pulse dial telephones. The prompt voice behind most U.S. AT&T implementations of this feature is Pat Fleet. Where available, it is offered on a per-call charge (typically 50ยข) or an unlimited-use monthly ...
Until 1969, a system was used with 2-digit area codes and local numbers varying from 2 to 5 digits depending on the area. Around 1969/1970 this was changed to a closed numbering system with 5-digit numbers nationwide; a zero had to be dialled before the number.
Public resistance to the introduction of new area codes, whether as overlay complexes (which allowed customers to keep their existing numbers, but broke seven-digit local calling) or by area code splits (where the area code of existing numbers was changed), prompted the FCC and state commissions to introduce thousands-block number pooling, i.e. the allocation of number space in blocks of only ...
AT&T Inc. is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. [4] It is the world's third-largest telecommunications company by revenue and the second-largest wireless carrier in the United States behind Verizon but ahead of T-Mobile. [5]
Until 1999, Tanzania, Kenya and Uganda shared a telephone numbering plan, in which subscribers were only required to dial the trunk code, area code and number.In that year, this was discontinued following Tanzania's adoption of a new numbering plan, although calls between the three countries only required regional prefixes rather than international dialling.
Except for short codes and emergency numbers, all telephone numbers in Sri Lanka have ten digits (initial 0 + nine numbers). Landline phone numbers begin with the area code, then one digit for the operator code, then six digits for the primary telephone number. Format: (XXX Y ZZZZZZ) where: "xxx" denotes the area code.
This service allows a subscriber to publish a national number and have the incoming calls routed to different destinations based on various criteria such as the geographical location of the caller, the time of day and the date on which the call is made. only landline numbers can call these numbers. Universal access number has these formats :