MultiVOIP SS TM Survivable SIP Gateway & Server User Guide Models: MVP210-SS MVP410-SS MVP810-SS

QS: Phonebook Example MultiVOIP User Guide
51
Phonebook Example
Flagstaff Office
204.16.49.75
8-Channel
Analog VoIP
(MVP810)
PSTN
PBX System.
Main Number:
777-5600
30 extensions
Area: 520
Santa Fe Office
PBX System.
Main Number:
444-3200
40 extensions
PSTN
204.16.49.74
8-Channel
Analog VoIP
(MVP810)
Area: 505
PBX System.
Main Number:
333-2700
204.16.49.73
24-Channel
Digital VoIP
(MVP2410)
PSTN
Boise Office
Area: 208
90 extensions
IP
Network
Each
Outbound Phonebook
contains two
pairs of entries, two entries for each
r em ote si t e. Wh enev er an out -of-t ow n
emp l oy ee di al s a 12-d i gi t nu m ber
beginning with the listed 5-digit
d esti n at i on p att er n (9+1+ar ea cod e) of
another com pan y locati on, t he PBX
hand s t he cal l to t h e v oi p sy st em . The
local voip strips off the “9” and directs
the call to the IP address of the remote
voip. The remote v oi p receives the call
an d h and s i t t o i t s PBX. The PBX t h en
completes the call to the PSTN.
The one-d i gi t
Outbound
destination
patterns pertain to 3-digit calling
bet w een comp any emp l oy ees.
Inbound Phonebook
One Common Situation
Voip Example. This company has offices in three
d i f f er en t ci t i es. The PBX u ni t s al l op er ate al i k e.
N ot abl y, t hey all gi v e access t o ou t si d e l i nes u si ng
“ 9.” Th ey al l are ‘ sm ar t ’ enou gh t o i d ent i f y v oi p cal l s
w i th ou t u si ng a sp eci al access d i gi t (“ 8” i s u sed i n
some sy st ems). Fi n al l y, th e sy st em op er at es so t h at
empl oy ees i n any off i ce can d i al em p l oy ees i n any
other office using only three digits. Here are the
p honebooks need ed f or t hat sy st em .
Each Inbound Phonebook contai n s
two entries. The first entry (4 digits)
specifies how incoming calls from the
other voip sites will be handled if
they go out onto the local PSTN.
Essentially, all those calls come to the
receiving voip with a pattern
beginning with
1+area code. The local
voip removes those four digits
becau se t h ey ar en ’ t need ed w hen
dialing locally. The local voip
at t aches a “ 9” at the begi nni ng of the
number to get an outside line. The
PBX then completes the call to the
PSTN .
The second
Inbound Ph onebook entr y
(1 digit) is for receiving calls from
comp an y em p l oyees i n t he oth er t w o
cities. The out-of-town employee
simply dials 3 di gits. The fir st of the
three digits is uni quely used at each
site and so acts as a desti nat i on
pattern (Boise extensions are 7xx,
San t a Fe extensi ons 2xx, Fl agst af f
ext en si ons 6xx).
The l ocal voip sees t h e p at t er n i n i t s
inbound phone book and notes the
first digit (here either 2, 5, or 6).
To make the match, this first digit,
t h r ee-d i gi t n u m ber.
specific extension identified by the
PBX. The PBX can then di al the
voip will send all three digits to the
ad d ed back on ce again so that the
field. This first digit must then be
2, 5, or 6 i s put i n the “ Remov e Prefix”