Voxell
5. ACHIEVING A VOICE LINK
VOXELL_UMTS_installation_revG_en.doc
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Incoming call
VOXELL interface receives a call over GSM/GPRS/3G network. The
equipment sends a call signal to the analogical phone that is
connected or to the PBX exchange; in the second variant the
exchange switches the call a local subscriber.
Outgoing call
PBX exchange must be configured to output the calls through
VOXELL. The user simply dials the wanted number from an office
telephone.
PBX exchange processes the number and analyses the prefix and
sends it to the outgoing trunk where VOXELL is installed. Then
VOXELL transmits the call to the mobile network.
5.3. Connecting to an extension of PBX
For this the FxO interface of VOXELL is used.
Figure 7: Connecting to an extension
This kind of connection is very useful especially when no analogue
trunks are available: for instance PBX exchange is entirely configured
as ISDN type or if PBX exchange has no free analogue trunk (all of
them are already used).
Incoming call
on DISA (Direct Inward Service Access)
A call from mobile network is received.
VOXELL answers and opens a local line. The PBX exchange
generates a dial tone. Upon this tone, the caller dials the number: a
local or external phone number (see the chapter 5.6.).
The PBX exchange routes this call in the same way how it treats any
call came from a local subscriber.
