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CALL ON ME RING TONE

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A vertical service code or VSC is a special telephone number that usually begins with the * (star) key on the touch tone keypad. Most codes are two digits, although those starting with 2 or 3 are now usually three digits. Some cellular telephone companies also use # instead of *, though this is actually just a short number typically used for other commercial services (e. g. pizza delivery), and not a VSC for accessing telephone company services. Path Engaged, Ring Tone echo cancellation - edge - extension - fax - fcc - fdma - fidonet - follow-me - g711 - g. In some cases VSCs can be accessed from rotary phones by dialing 11 instead of the *.

Vertical service codes are often colloquially referred to as "Star" codes, or as "CLASS" codes after the AT&T trademark for the original implementation of these codes, known as "Custom Local Area Signalling Service".

[edit] List of vertical service codes

The following are the VSCs generally used in the North American Numbering Plan. Not all of these services are available in all areas, and some are only available to landline or cellular telephones. Some require additional services be purchased from the telephone company to use them. H I J K L M N.

*00 English, *01 French - Inward Voice Activated Services (IVAS) enables a subscribing business to provide automated voice activated routing for inbound English or French speaking calls (i. e. , separate codes for the same service in each language). IVAS will initially consist of the following services:Voice Activated Premier Dialing (VAPD) which allows customers to contact subscribing businesses by speaking the business name or service. Voice Activated Blue Pages (VABP) which allows customers to request access to government services. FAQ.