Voip connection – 2N StarGate/BlueTower v5.7 User Manual

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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.

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.729a,b
Default RTP ports – 8000–8998 (adjustable by web interface)
Supported signalling – SIP
Default IP port for signalling – 5060 (adjustable by web interface)
STUN protocol – Supported IP address check
Interface for SIP – 10BaseT Ethernet interface on basic CPU card
Interface for RTP streams – 10/100BaseT Ethernet interface on VoIP card
Maximum number of simultaneous calls

2N StarGate

– 30

2N BlueTower

– 8

The VoIP board is designed as a media gateway. It works only with media packets
(RTP); signalling packets (SIP) must be routed to the basic CPU IP address.

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.

TIP

You have to restart the VoIP card upon any VoIP setting change.