User manual

MX-ONE SYSTEM DESCRIPTION
50 21/1551-ASP 113 01 Uen N2 2014-01-28
With this flexible deployment approach, the capacity of a MX-ONE tele-
phony system can be scaled from approximately 100 to several hundred
thousand extensions in normal traffic conditions. In a large scale
MX-ONE system deployment, the Servers and media gateways are
interconnected via a high speed IP infrastructure.
Each Telephony Server and its associated Media Gateways can work an
an autonomous unit if contact with the rest of the system is lost.
MX-ONE, with its distributed architecture, offers high availability without
any extra hardware based redundancy, but availability can be increased
by using both server redundancy and network redundancy. For more
information, see chapter 5.5 High Availability.
Below, several terminologies are explained to clarify MX-ONE media
gateway deployment scenario to build a highly scalable MX-ONE Tele-
phony System.
Single gateway MX-ONE system
A single gateway system is defined with one media gateway, either soft
or hardware based (MGU), with its own Telephony Server, i.e. a single
media gateway MX-ONE system consists of a Telephony Server and a
media gateway. Refer to section 5.1.1.1 Media Gateways supported in
MX-ONE 5.0 and Table 1 MX-ONE 5.0 Server Options for various media
gateway types and valid server options. Maximum size for a single
server system is approximately 2500 SIP users.
Multi-gateway MX-ONE system
A single gateway system is defined as a MX-ONE Telephony Server
(TS) with one "media gateway", which is either a software based media
server or a hardware based media gateway (MGU board and chassis).
Refer to section 5.1.1.1 Media Gateways supported in MX-ONE 5.0 and
Table 1 "MX-ONE 5.0 Server Options" for various media gateway types
and server options. The maximum size for a single server system with
one media server or media gateway is approximately 2500 SIP users.
Distributed MX-ONE system
In the case where one or several Telephony Servers (with media gate-
ways) are deployed remotely, it is referred to as a remote system node,
which is part of a large MX-ONE system configuration. This remote
system node can work as an autonomous unit with independent and
complete MX-ONE system functions, supporting all features and
services without any restrictions due to geographical distance. The
configuration supports local PSTN access and survivability during WAN
failures.
Remote Gateway
Media gateway(s) in a multi-gateway system can be installed in remote
location(s) (over the WAN).