2N BlueStar, User Manual

Page: 53 / 177

Installation 2.4
53

Un-overloadable GSM / UMTS cells to which the gateway modules are logged
in; please keep in mind that up to 30 calls are set up at a time during full
traffic (according to the gateway configuration);

No strong electromagnetic radiation is allowed on the system installation site;

No strong electromagnetic reflections are allowed on the antenna installation
site;

The ISDN PRI connection must be configured properly and meet the ITU-T
Q.931-EDSS1 and related recommendations;

The VoIP – SIP signalling must meet the required RFCs;

Place the gateway into an environment that complies with the gateway
working conditions (an air conditioned room or installation rack);

An appropriate (according to the power supply unit used) power feeding with
overvoltage protection and an on-line UPS are recommended;

An Ethernet connection on the installation site is advisable for comfortable
gateway administration;

All the SIM cards to be used must have the same PIN code (or deactivated
PIN code) and be activated by the GSM / UMTS provider.
Warning

The outdoor antenna cable has to be connected according to the
overvoltage protection and grounding safety rules.

High temperatures on the installation site may cause short-time or
permanent gateway errors!
Warning

Do not cover the top, bottom and rear sides of the gateway to avoid
overheating and gateway error!

Protection against humidity and extreme temperatures: The appliance
may never be placed close to heat sources (radiators) or places exposed
to direct sunshine. Also places with high humidity (such as bathrooms and
cellars), places with significant temperature fluctuation (next to doors,
windows), dusty places (workshops) and places exposed to aggressive
gases (accumulator rooms, boiler rooms) as well as places with intensive
vibrations and places exposed to shocks (compressor rooms, heavy
industrial operations) should be avoided. The system should be installed
horizontally.
VoIP Connection
All the gateway types have the same features. The only difference lies in the number
of simultaneous calls through the VoIP card.
Voice codec support G.711u , G.711a , G.723 at 6.3/5.3bps , G.729
Default RTP ports 8000 – 8998 (adjustable by configuration tool)
Supported signalling SIP