3 call routing, Mobility extension – 2N VoiceBlue MAX v1.1 User Manual

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2N TELEKOMUNIKACE a.s., www.2n.cz


3.3 Call Routing

Calls from a VoIP port to a GSM/UMTS network are routed to any GSM/UMTS port
according to the LCR (Least Cost Routing) table. If an incoming call is routed via a busy
port, other ports are checked automatically for availability (depending on the
configuration) and in case no allowed outgoing port is available, the outgoing call is

The LCR algorithm identifies the outgoing call type, current time tariff rate, day in a
week, and/or free minutes of GSM providers and routes outgoing calls accordingly.

Incoming calls from GSM networks are routed directly to the defined SIP address, or
the DISA function is activated. Furthermore, calls can be routed according to the CLIP
(caller's telephone number). And the CallBack service is also available.

Mobility Extension

Mobility Extension (ME) is a function that turns your mobile phone into a fixed office
line and thus helps you take advantage of all PBX functions.

You never miss any important call as you are available at all times.
You can get information SMS messages on missed calls.
You can control your company PBX call forwarding services from your mobile
You can make use of a comfortable DTMF code control.
You need not make complicated forwarding actions as the function is fully
ME can work with any SIP Proxy PBX.
ME can replace any standard VoIP phone.

Calls to your mobile phone are free of charge or at a moderate cost .


You need not integrate a costly DECT system any longer.

Model situation:


In case the VPN service is activated by your provider for the GSM gateway and your

mobile SIM cards.

Model situation description:

A client is calling Mr. Green at

from his or her fixed line. According to the



company PBX configuration, all calls to line 111 (Green's office phone) automatically
alert line 333 too (red arrows). Suppose Mr. Green is on a business trip. The GSM
gateway automatically forwards the call to Mr. Green's mobile number (orange arrow).