Operation Manual
78
1 Introduction
and receive faxes. Furthermore, the Controller can be
used for such applications as remote network access
over ISDN. Figure 1 illustrates the uses of the AVM
Mobile ISDN-Controller M2 in ISDN operation.
Fig. 1 Mobile ISDN-Controller M2 in ISDN operation
In conjunction with a fax/data-capable mobile phone, the
AVM Mobile ISDN-Controller M2 permits efficient,
reliable data connections over the digital GSM cellular
network to GSM, ISDN and conventional analog devices.
The digital/analog conversion for connections to analog
terminal equipment is performed by the GSM network
operator’s interworking modems (V.32 at 9600 bit/s).
For further information on the various GSM connection
modes, please see Appendix A.
Figure 2 illustrates the uses of the AVM Mobile ISDN-
Controller M2 in GSM operation (PSTN = analog
telephone network).
Controller in GSM
Operation
ISDN
corporate network
Internet provider,
on-line services, BBS
digital X.75, V.110, HDLC
CompuServe
laptop with M2
for ISDN
laptop with M2
for ISDN
group 3 telefax