Jan Ceuleers wrote in a message to Joe Frankiewicz:

-> Thanks for the info , Joe.  One more question though ... does
-> an ISDN line also function as a voice grade line which will
-> support typical telephone calls?

JF> If the "modem" or terminal adapter supports this, yes.  As
JF> an example, the I-Modem has a jack on the back which allows
JF> attachment of standard phones, modems, and fax machines. 
JF> This second channel can be used for incoming or outgoing
JF> calls independantly of the digital channel. This does not
JF> mean that you can plug an ISDN line into a regular modem or
JF> phone, however.  The "modem" or terminal adapter must
JF> perform the conversion for you.

 JC> Does this work for both incoming and outgoing calls? Specifically,
 JC> does the I-Modem generate the ringer voltage?

Only the external I-Modem.

                                   - Bob
Internet  : bob{at}juge.com

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