| All-A-B-C-D-E-F-G-H-I-J-K-L-M-N-O-P-Q-R-S-T-U-V-W-X-Y-Z |
| Call Data Record (CDR) - - Record of a placed call. A
CDR includes the time the call was placed and the duration of the call. |
| Calling Cards - - Telecommunication credit cards with
an AuthCode for using a long distance carrier when the customer is away from
their home or office (ANI). |
| Callingcards - - Same as phone cards or calling cards. |
| Carrier - - A telecommunications provider which owns
switch equipment. |
| Carrier Identification Code - CIC - - A three digit
number used with Feature Groups B and D to access a particular IEC's switched
services from a local exchange line. One or more CIC codes are assigned to each
carrier. (i.e. there may be multiple CICs per ACNA). See Bypass |
| Casual Calling - - Allow any ANI (including undefined
ANIs) to access a given carrier. For example, if the originator is calling from
a non-coin phone, they may dial 1010555+destination number and have the call
routed through WorldCom and billed to the originating phone |
| Casual Customer - - Any person or organization that
dials any CIC Code. (Not necessary to presubscribe to the carrier.) |
| Class of Service - COS - - A special limitation on what
numbers can and cannot be called. International, 809, 809 + Canada, 48
contiguous states, etc. |
| Clipping - - Situation where the system cuts off the
first part of the first word in a sentence. (Not to be confused with choppiness
-- which is a packet loss). |
| COCOT - - Customer Owned Coin Operated Telephone |
| Coin Phone - - A coin-operated pay phone with
restricted access to some services (e.g. International calling). Coin phones
have subclasses of Public, Semi Public, and Private. |
| Collect - - A call that is paid for by the
receiving/destination phone number. Requires approval/authorization of the
person being called. |
| Common Carrier - - A carrier that holds itself out as
serving the public (or a segment thereof) indifferently (i.e., without regard
to the identity of the customer and without undue discrimination). Common
carriers may vary rates based on special considerations and may in fact serve
only a small fraction of the general public. |
| Connection Fee - - A fee charged on every call that is
made. |
| Contract - - A legally-binding agreement between a
vendor and a customer to provide Products, Services or Features in a specified
quantity and quality, for a specified price, during a specified period of time. |
| Contract Tariffs - - Services and rates based on
contracts negotiated with individual customers, but theoretically available to
all customers. AT&T has filed several hundred contract tariffs. |
| Country Code - - Two or three digit codes used for
International calls outside of the North American Numbering Plan area codes.
Dial: 011 + country code + city code + local phone number) (e.g. "011 + 91 + 22
+ 123- 4567" 91 = India, 22 = Bombay) |
| Customizable PIN - - A PIN that gives you the ability
to choose the specific numbers or character sequence. |
| Cut-Through Dialing - - "10"+CIC+" #" followed by an
AuthCode for IntraLATA calls. |