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- Newsgroups: comp.dcom.isdn
- Path: sparky!uunet!psinntp!wrldlnk!usenet
- From: "Bob Larribeau" <p00136@psilink.com>
- Subject: Re: ISDN in USA and Germany
- In-Reply-To: <47.1236@LINK-HH.zer.sub.org>
- Message-ID: <2931456205.2.p00136@psilink.com>
- Sender: usenet@worldlink.com
- Nntp-Posting-Host: 127.0.0.1
- Organization: Consultant
- Date: Sat, 21 Nov 1992 21:30:23 GMT
- X-Mailer: PSILink-DOS (3.3)
- Lines: 29
-
- >Sorry if this is a FAQ, but are the ISDNs from Germany and USA
- >"compatible" ? So, may I call from an ISDN-site here right away over
- >the big pond and get all the ISDN-features?
- >
- >Ottmar Roehrig
- >
- >Zerberus: O.ROEHRIG@LINK-HH.ZER | UUCP: ottmar@ajberl.adsp.sub.org
- > DE: O.ROEHRIG@LINK-HH.COMLINK.DE
-
- The first question is what does "compatible" mean. You can make a voice
- call from an ISDN set in Germany to an ISDN set in the U.S. Given the
- state of SS7 deployment, I would be very surprised if you can get your
- signalling information sent end-to-end for voice calls.
-
- AT&T says that they will support switched digital service between the
- U.S. and Germany at 56 kbps or 64 kbps. That implies that there is
- enough SS7 involved for these data calls to support a 64 kbps call. The
- cost from the U.S. to Germany is $2.35 per minute.
-
- Packet connections can be made assuming that the ISDN networks on both
- end have X.75 connections into public packet networks. Many RBOCs in
- the U.S. do not have packet connections into public packet networks today.
-
- What this means is that you can achieve connectivity, depending on the
- end points, but you will probably not have the signalling information
- transmitted across the networks.
-
- Bob Larribeau
- San Francisco
-