Appendix E
How to make off-Net Calls (PSTN calls)
There are two ways to make the off-net calls (call to PSTN numbers). One is via other proxy
server and the other is via the local FXO gateway.
For method one, the IPX-600 needs to register to a sip proxy server provided by a service
provider, this could be configured in the
Proxy Server
page. The following web page is an example of
setting IPX-600 to register to a proxy server “
fwd.pulver.com
”, and this service is named “
FWD
”.
Figure 63. Proxy server registration example page
Since a IPX-600 could register to up to eight different proxy servers, so, there must be a way to
direct a call to go to the correct proxy server you desired to use. This is done through the
Call Route
settings. For example, as depicted in the following web page of a call route setting, if you want to make
the off-net call via “
FWD
” proxy server, you have to dial
“9”
followed by the PSTN phone number. The
IPX-600 will direct this call to the “
FWD
” proxy server and drop digit 9 before sending the telephone
number to the proxy server. The “
FWD
” proxy server will then call to the correct PSTN phone number.
In the reverse direction, if any user of the public proxy server dials into IPX-600 by calling the
IPX-600’s registered number, this call will enter into the
Auto Attendant
announcement of IPX-600 or
the selected user.
Figure 64. Call route example page
The second method is to put a FXO gateway in the LAN network and there could be two methods for
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