Call forwardingor call diversionis a telephony feature of some telephone switching systems which redirects a telephone call to another destination, which may be, for example, a mobile telephonevoicemail box or another telephone number where the desired called party is available. Call forwarding was invented by Ernest J. More consistently, the forwarded line indicates its condition by stutter dial tone.

Call forwarding typically can redirect incoming calls to any other domestic telephone number, but the owner of the forwarded line must pay any toll charges for forwarded calls. Once someone answers, call forwarding is in effect. If no one answers or the line is busy, the dialing sequence must be repeated to effect call forwarding. This feature requires a subscription from the telephone company. Also available in some areas is Remote Access to call forwarding, which permit the control over call forwarding from telephones other than the subscriber's telephone.

VOIP and cable telephone systems also often allow call forwarding to be set up and directed via their web portals. In Europe, most networks indicate that unconditional call forwarding is active with a special dial tone. When the phone is picked up it is immediately apparent that calls are being forwarded. The ISDN Diversion supplementary services [2] standards document uses "diversion" as a general term to encompass specific features including "Call Forwarding Busy", "Call Forwarding No Reply" and "Call Deflection".

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The terms call forwarding and call diversion are both used to refer to any feature that allows a call to be routed to a third party, and the terms are generally interchangeable.

Special types of call forwarding can be activated only if the line is busy, or if there is no answer, or even only for calls from selected numbers. In North Americathe NANP generally uses the following vertical service codes to control call forwarding:. The Sprint Nextel cellphone company uses these: Most EU fixed-line carriers use the following codes based on CEPT and ETSI standards developed in the s on both POTS and ISDN lines: The general syntax for all European service codes always follows the pattern below:.

These were developed by ETSI and are based on standard European diversion codes and are similar to those used on most landlines in the EU: The forwarding will be re-activated to the number registered in the network.

For example, if one uses the out-of-reach code in a forwarding command:. After saluhallen market stockholm above command, all calls made to the phone, while it is out of reach, will be forwarded to It is possible forex discount code activate the feature to a number other than the registered number, while still retaining the registered number for later use.

For example, issuing the command:.

However, if later a command is issued:. For example, forwarding on no-answer can be set with:. In some networks there may be a limit of not more than 30 seconds before forwarding i. Diverting calls can increase one's availability to a caller.

The main alternative forex trading game download an answering machine or voicemail, but some callers do not wish to leave a recorded message, suspecting that the party will delay returning their messages.

Some businesses find that the human touch can improve contact, thus sales, but traditional wired answering services are expensive, so they have their calls forwarded to a call centerso the client can reach an operator instead of an answering machine or voice mail.

Before the availability nextel call forwarding options verizon wireless call forwarding, commercial answering services needed to physically connect to every line for which they provided after-hours response; this required their offices be located near the local central exchange and be fed by a huge multi-pair trunk in which a separate pair of wires existed for each client subscriber. With call forwarding, there is no physical connection to the client's main telephone service, which is merely call-forwarded to the answering stock do futures trading simulation games usually on a direct inward dial number at the end of the business day.

Often, a suburb of a large city 99 binary options trading platform wiki a toll call from many suburban exchanges on the opposite side of the same city, even though all of these suburbs are a local call to the city centre. A business located in such a suburb may therefore benefit from obtaining a downtown number as an "extender", to be permanently forwarded to their geographic suburban number.

Where unlimited local calls are flat-rated and long-distance incurs high per-minute charges, the downtown number's wider local calling area represents a commercial advantage. Markham directly north of Toronto is long-distance to Mississauga directly west of Toronto. Some services offer international call forwarding by allocating for the customer a local virtual phone number which is forwarded to any other international destination.

The number was permanently forwarded and had no associated telephone line. As a means to obtain an inbound number from another town or region for business use, "remote call forwarding" schemes tend to be far less expensive than foreign exchange lines but more costly than using voice over IP to obtain a local number in the chosen city.

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Canadian Intellectual Property Office. European Telecommunications Standards Institute.

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