Multi-Tech Systems MVPFXS-16 - Manual (Page 33)

MultiVOIP FXS Quick Start Guide Phonebook Tips
33
3.
Knowing When to Drop Digits
.
Example
When calling area codes and
access codes are used in
combination, a leading “1” or “0”
must sometimes be dropped.
Phonebook Entry
Area code for Inner London is
listed as “0207.” However, in
international calls the leading
“0” is dropped.
International
Access Code
U.K.
Country
Code
Leading Zero
Dropped from
Area Code
4.
Using a Comma
.
Detail
,
= 1-second pause
Commas are used in telephone
dialing strings to indicate a pause
to allow a dial tone to appear
(common on PBX and key
systems). Commas may be used
only in the “Add Prefix” field of
the Inbound Phonebook.
in many PBX systems
(not needed in all)
5.
Ease of Use
. The phonebook setup determines how easy the voip system is to use. Generally, you’ll
want to make it so dialing a voip call is very similar to dialing any other number (on the PSTN or through
the PBX).
6.
Avoid Unintentional Calls to Official/Emergency Numbers
. Dialing a voip call will typically be somewhat
different than ordinary dialing. Because of this, it’s possible to set up situations, quite unwittingly, where
phone users may be predisposed to call official numbers without intending to do so. Conversely, a
voip/PBX system might also make it difficult to place an official/emergency call when one intends to do so.
Study your phonebook setup and do some test-dialing on the system to avoid these pitfalls.
7.
Inbound/Outbound Pattern Matching
. In general, the Inbound Phonebook entries of the local voip unit will
match the Outbound Phonebook entries of the remote voip unit. Similarly, the Outbound Phonebook
entries of the local voip unit will match the Inbound Phonebook entries of the remote voip unit. There will
often be non-matching entries, but it’s nonetheless useful to notice the matching between the phonebooks.
8.
Simulating Network in-lab/on-benchtop
. One common method of configuring a voip network is to set up a
local IP network in a lab, connect voip units to it, and perhaps have phones connected on channel banks to
make test calls.