CSG SIP Communications Gateway
1
CSG SIP Communications Gateway
CSG SIP Communications GatewayOverview
The CSG SIP Communications Gateway is a stand alone Private Branch Exchange (PBX) which runs a
version of Asterisk. It is suitable for the desktop, or mounting in a typical network closet or restricted
access location. The CSG is ideal for small office environments or as an extension to a central CSG PBX.
The CSG can function not only as a PBX, but also as VoIP ATA, or VoIP gateway. It has eight analog
ports that can be configured (via modules) as Foreign Exchange Office (FXO) or Foreign Exchange
Station (FXS) ports.
The CSG enables you to transform an intercom-enabled Modero Touch Panel into a full-featured IP
phone. With the CSG and an intercom-enabled Modero Touch Panel you can make and receive local,
long distance, and international phone calls, and have access to phone features like call waiting, caller
ID, call forwarding, call queuing, and voice mail.
The CSG comes in three different models: the CSG-500, CSG-544, and CSG-580. The CSG-500
supports up to 50 users, but offers no analog lines. In addition to supporting up to 50 users, you can
integrate the CSG-544 and CSG-580 to outside PSTN or POTS networks. The CSG-544 allows for up to
four phones and four PSTN lines. The CSG-580 allows for up to eight PSTN lines. The CSG supports
AMX Session Initiated Protocol (SIP)-enabled touch panels, such as the MVP-8400i, NXD-1000Vi, and
NXD-700Vi, as well as 3rd party IP phones.
In a typical network, the CSG acts as proxy server, registrar, and gateway. A SIP-enabled touch panel
acts as a user agent, which allows the touch panel to act as an IP phone. FIG.1 displays a high-level
diagram of the recommended network infrastructure for usi ng the CSG.
FIG. 1 Recommended network infrastructure