Altigen ACC 6.7, Administration Manual

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Chapter 26: Redundancy Configuration
344 MAXCS ACC 6.7 Administration Manual
Firmware Requirement
IP phone firmware 2x86 or above is required for a MAXCS 6.7 redundancy system.
Software Requirements
Some system components must be installed on separate servers. This section discusses
Voice Mail service, voice recording storage location, CDR Logger, CDR database,
Enterprise Manager, and other applications.
Voice Mail and Voice Recording
Voice Mail —Voice Mail service should be installed on a separate server. If Voice Mail is
installed on the primary Softswitch, when the primary Softswitch goes down and the
secondary Softswitch takes over, voice mail functions are
not available.
Voice Recording —The target directory of recorded files should be in a server other than
the primary and secondary Softswitch.
External Applications
CDR Logger and Database —An External CDR Logger and external CDR database are
required in a Redundancy configuration so that all the calls made in both the primary
and secondary Softswitch are logged in the same database. The External CDR Logger
connects to the Softswitch using shared IP addresses. The CDR Search application
should query through the external CDR database.
The primary and secondary Softswitches synchronize the next session ID, so that when
the secondary Softswitch takes over, its session ID does not duplicate the primary's.
When a Softswitch becomes the active server, it connects with the External CDR Logger.
The External CDR Logger drops the original connection when it accepts this new one. The
Softswitch has a local buffer where it keeps CDR records when the External Logger
connection is unavailable. When the connection with the External CDR Logger is
established, these buffered records are written into the external CDR database.
Enterprise Manager —Enterprise Manager must be installed on a separate server with
the Voice Mail service.
Other Applications —Other applications can be either installed locally on each
Softswitch system or run as external applications on a separate machine from the
primary and secondary Softswitch. Examples of these external applications include
MaxCommunicator, MaxAgent, MaxSupervisor, AltiConsole, AltiReport, VRManager,
SuperQ, CDR Search, and so on.
All of them have a keep alive connection with the Softswitch. When switchover occurs,
each application detects that the connection has broken, and tries to reconnect with the
active switching server.
Initial Device Setup
To set up for redundancy, do the following:
1. Prepare two computers and synchronize their time.
2. Plug in the system key to the primary system before the software installation. A
system key on the secondary system is not necessary.
3. At the primary system, install MAXCS 6.7 software. The redundancy feature is
disabled by default.
4. Register the Redundancy license through MaxAdmin on the primary system.