Specifications

VoiceFinder VoIP Gateway Configuration Guide (APOS 2.0) Release Version 3.1
AddPac Technology Co., LTD
- 155 / 416-
For example, if the called party number of the inbound call is 444123456 and forward-digit
from 4, 123456 is delivered and if it is forward-digit last 4, 3456 is delivered.
3.3.6. Configuring Number Expansion
In most of business environment, the telephone number has been structured to allow dialing
only a portion (Number Extension) of the entire E.164. VoIP (voice over IP) can be configured
to recognize an extension number and expand the extension number to full E.164 dialed
number by using both destination-pattern and num-exp. Prior to configuring these 2
numbers, it would be very helpful to draw a configuration diagram of each telephone extension
number. This can be easily done by preparing Number Expansion Table.
3.3.6.1. Preparing Number Expansion Table
The following Figure 3.7 shows an example of integrating PSTN network to existing IP
network for a small-sized company using VoIP. The figure below shows the destination pattern
(or Expanded Telephone Number), being used in Gateway1 assumes (408) 115-xxxx, (408)
116-xxxx, (408) 117-xxxx, xxxx is the command to configure to each dial peer using extension.
Also the figure below shows the destination pattern (or Expanded Telephone Number)
configured to (729) 555-xxxx.
WAN
10.1.1.2
IP Cloud
PBX
PBX
AP1100
Gateway
1
AP1100
Gateway
408 115
-
1001
408 116
-
1002
408 117
-
1003
WAN
10.1.1.1
V
o
i
ce
P
or
t
0/0
0/1
Voice Port
729 555
-
1000
V
o
i
ce
P
or
t
0/0
729 555
-
1003
729 555
-
1002
729 555
-
1001