Operation Manual

116
4 ISDN and GSM Operation
Further Information on
GSM Operation
3. Click on the Properties button and select the
“Connection” dialog page.
4. In the next dialog, click on Advanced.
5. In the “Extra Settings” field, enter the following
initialization string for V.110:
ATS31=2; S51=0
6. Confirm and close the dialogs by clicking on OK
three times, then close the Control Panel.
When operating the AVM Mobile ISDN-Controller M2
in GSM, please note the following:
• The AVM Mobile ISDN-Controller M2 allows your
computer to communicate with ISDN subscribers over
the GSM cellular network using your mobile phone.
Compatible equipment in the ISDN network must
support the ISDN protocol V.110. For optimum data
communications over GSM, the ISDN equipment should
support the Mobile ISDN standard GSM 07.08 (involving
the protocols V.110/ISO 3309/X.75). The AVM ISDN-
Controller B1 and T1 series with the current drivers
meet this condition. Now Mobile ISDN connections are
also possible with the FRITZ!Card series of passive
ISDN-Controllers (FRITZ!Card Classic, PCI, PnP and
PCMCIA). Driver updates for the various FRITZ!Cards
are provided for this purpose on the CD-ROM in the
folder Cardware\ISO3309. These updates are also
available from AVM Support (fax: [phone]).
For further information, please see Appendix A.
• Please note too that the ISDN-Controllers named
above use the number dialed to determine whether the
call is an ISDN or a Mobile ISDN connection. When a
call is placed to a GSM subscriber, an “m” at the end
of the number (e.g. “017123456m” or “0172
56789m”) causes the ISDN-Controller to set up a
Mobile ISDN connection.
• Telephone calls cannot be placed or received during
data or fax connections. SMS messages may be
received, however.