User's Manual

Chapter 8 PBX Tutorials
ISG50 User’s Guide
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• Assigning an LCR to an Authority Group - giving extensions the right to make outbound calls via
the ITSP connection.
8.4.1 The ITSP Connection
The following section introduces how to configure a connection to the ITSP. This example assumes
that the ISG50 has a network connection to the SIP server at your ITSP. The following figure shows
the network configuration used in this example.
Figure 120 Network Connection to ITSP
The following table describes sample account information as provided by the ITSP:
FXO
ITSP
212555555
1001
Caller dials
1212555555
The ISG50 matches this number
with an LCR, applies an offset
(strips off the 1), add a dial plan
and routes the call to ITSP.
prefix 016 to the start of the number
ISG
Table 20 Sample VoIP Account Information
INFO VALUES INFO VALUES
SIP Number
(Representative Number)
5551122 SIP Service Domain 127.23.37.22
SIP Server Address 127.23.37.22 DTMF Mode info
SIP Server Port 5060 SIP Username 5551122
Register Server Address 127.23.37.22 SIP Password 1234
Register Server Port 5060 Codecs supported G.722, G.726, G.711 u-law,
G.711 a-law, G.729A
ITSP
127.23.37.22
WAN
ISG