IPX Phone User Manual
IntelliSoft Technologies, Inc
5
Figure 1.2 Voice Intranet Concept
In this diagram, the three cities could be in the different part of the world. The IPX’s have
peer-to-peer relationships over the Internet. Calls from an extension in one location to an
extension in another location are the same as the calls to the next office in the same
location. The PBX services can transcend geographical boundaries. All local PSTN lines,
VoIP lines, and VoIP trunks can be shared by all extensions of the entire organization.
Virtually, the three IPX work together as if it is a wide area IPX.
In this virtual wide area PBX, any extension can use local or remote external lines to
make outbound calls. Incoming calls from any location can reach any internal extensions.
For you, an extension user, the remote extensions are the same as local extensions;
remote PSTN lines, VoIP lines and VoIP trunks can be used as the local external lines.
You do not need to make path selection, the IPX systems will make decision for you
based on predefined routing policies.
2
Extension Setup
2.1 Analog Phone and Fax
Each IPX model has a fixed number of analog phone ports. Analog phone can connect to
a phone port and becomes an extension of the IPX.
By dialing *25# from the phone, you will hear the announcement of the extension
number. The number is predefined by the IPX system administrator.
2.2 IP Phones
The connections between IP phones and the IPX are over IP network – a shared data
network. In the following figure, IP phone A is in the IPX LAN; IP phone B is in the IPX
WAN that is the ADSL LAN; IP phone C is in the public Internet.
The network relationship between an IP phone and the IPX determines how an IP phone
can access the IPX. Each IP extension should use a proper IP address of the IPX for
extension registration. The IP address of the IPX should be reachable from the IP phone.
