Multitech MultiVOIP MVP130-AV-FXS, Быстрый старт

Страница: 41 / 63

Phonebook Tips
41 MultiVOIP Quick Start Guide
2.
The Four Types of Phonebook Digits Used.
Important!
“Destination patterns” to be entered in your
phonebook will generally consist of:
(a) calling area codes,
(b) access codes,
(c) local exchange numbers, and
(d) specialized codes.
Although voip phonebook entries may look
confusing at first, it’s useful to remember that all the
digits in any phonebook entry must be of one of
these four types.
(a)
calling area codes
. There are different names for
these around the world: “area codes,” “city
codes,” “country codes,” etc. These codes, are
used when making non-local calls. They always
precede the phone number that would be dialed
when making a local call.
(b)
access codes
. There are digits ( PSTN access
codes ) that must be dialed to gain access to an
operator, to access the publicly switched ‘long-
distance’ calling system(North America), to
access the publicly switched ‘national’ calling
system (Europe and elsewhere), or to access the