Some ISDN features are device-specific and cannot be activated by isdn4linux for other devices, unless isdn4linux were to falsify the TEI (which would probably confuse the other device). Such device-specific ISDN features are, among others: rejection of a waiting call, caller id on/off, hold, conference calls, differing COLP/CLRP.
These low-level formats are possible:
Yes, voice support is possible with the current version of isdn4linux.
You can either use "vgetty" from Gert Doerings "mgetty+sendfax",
or "vboxgetty" from Michael Herold, which is made especially for
isdn4linux.
The latter can be found at:
ftp://ftp.franken.de/pub/isdn4linux/contributions/
NO, for all passive cards. However, there is a project working on this
rather complicated problem. For more info on its status have a look at:
http://home.telia.no/Morten.Rolland/linux/i4lfax/index.html
Yes, for the active card AVM B1 (its firmware has implemented fax as one
of its features).
If you do want to fax now, your best choice is to install an analog fax modem
along with your ISDN card.
Call diversion features are implemented in the latest cvs tree version for
kernel 2.0.x (but not 2.1/2.2/2.3). Use the new program divertctrl. So far
no howto and little documentation does exist for it, therefore currently this
is something for the more experienced user. Alternatively in the Netherlands,
the keypad protocol can be used.
Yes, just set up an ISDN interface with encapsulation
ethernet. mars_nwe can do the rest (e.g. routing). Also, you can
route ipx with ipppd, see question
cfg_syncppp_ipx
.
The current version of isdn4linux support 2 methods of channel bundling:
Yes, see the "Diald" part of the "Configuration" section.
Yes. If a network interface (e.g. "isdn0") is set up, the driver will dial the number. If in addition a hangup timeout (Idle Timeout) has been given, isdnctrl huptime interface time, then the driver will automatically hang up when no data was been transferred over the interface for "time" seconds. However, with syncPPP there are problems (see the syncPPP section). Also look at the dialmode description (configuration section). You may also be very interested in the big part of this FAQ that handles unwanted dialouts...
Yes, it works with the modem emulation with the ttyI* devices. There is a special register to set for videotex (ATSx=y - see the Readme's) Warning! XCept (formerly Xbtx) has an ISDN configuration option. This should NOT be used. XCept should be configured as if a normal modem were being used.
Isdnlog offers this feature with option "-t". Unfortunately, the seconds are not transmitted via ISDN, and the transmitted time is not very accurate - depending on the ISDN equipment of your telephone company there may be a deviation of several minutes (!). It's better to get a PC clock that is set by radio signals and check it with, for example, xntp. You can also use a time server in the Internet with "netdate" or "rdate". One time server can be found in Cologne: time.rrz.uni-koeln.de, but there are many more.
Yes, you really can! Steffan Henke
henker@informatik.uni-bremen.de
wrote on 25 Oct 96:
In dosemu.conf it is enough to enter a virtual com port, (for example com2) that can be used with e.g. Telix or Terminate: serial { com 2 device /dev/ttyI3 } Access with Fossil is possible if fossil.com (included with dosemu) is started. Tested with the following configurations: - Kernel 2.0.21, Teles driver incl. Karsten's patches - Kernel 2.0.21, HiSax
Raw IP does without the use of a protocol such as X.75 or HDLC (for modem emulation, etc.) or PPP. TCP/IP packets are directly exchanged. Raw IP has both advantages and disadvantages. Advantages: