Article 4532 of comp.dcom.isdn: Path: mri-gw!psinntp!psinntp!psinntp!news.ilx.com!news.dorsai.org!news2.sprintlink.net!news.sprintlink.net!tequesta.gate.net!news!bwb From: bwb@inca.gate.net (Brad Bennett) Newsgroups: comp.dcom.isdn Subject: Re: INTERNET availability over "D" (X.25) Channel? Date: Wed, 15 Jun 94 22:15:29 GMT Lines: 60 Message-ID: References: NNTP-Posting-Host: ohfc.orfl.gate.net X-Newsreader: VersaTerm Link v1.1.1 In Article , Joe Mcgraw wrote: >Does anyone know of an internet gateway provider that provides internet access >over the "D" channel (Public Data Network)? Is this something that makes sense, >or would the delays be unacceptable? > >Thanks for your responses. >Joe McGraw (JMCGRAW@DELPHI.COM) Joe: Funny you should ask. Actually, the very service from which you posted your message actually has D channel access (DELPHI). You just need to know their X.121 Address. And here it is: 311061703088 (for SprintNet) or 3106903035 (for Tymnet). You can actually add two more 0s for the SprintNet address and four more 0s for the Tymnet address if your TA requires them. I have accessed DELPHI via D channel packet for over a year...works fine. Just a little too slow for ftp transfers. Same for CompuServe. I go through their gateway in New Jersey. And I access my AT&T email account (EasyLink) with D channel packet, and SprintMail. It is important that you have an interexchange packet carrier if you are going to access any of these services and they are out of your LATA. Just like a long distance voice phone call. I typically use Accunet (AT&T) whose DNIC is 3134 or SprintNet whose DNIC is 3110. You can have a packet carrier preselected on your ISDN line. Just give your provider the carrier of choice (and you can sound even more intelligent if you also give them one of the DNICs which I listed above). They will fill in the correct field of your line translation. I know for the AT&T 5ESS the field is titled "IECP DNIC". The D channel packet capability of ISDN is vastly underutilized. There are many services already available due to the widespread use of public X.25 Networks (e.g. DELPHI and CompuServe). Another service is Regional Electronic White Pages. Try dialing this number with your TA in D channel packet mode: 031442125551313. That is NYNEX's Electronic White Pages server. Try 031412159222470. That is Bell Atlantic's Electronic White Pages server. Of course, because you do not have an account, you cannot login. Make sure that you set up your dialing string correctly...I don't know what TA you are using but some put the RPOA field (the long distance packet carrier's DNIC) up front and others assume that it should follow the X.121 address. Think of it as dialing a voice call, where you also enter a chosen carrier while dialing. Of course, if you have already preselected a carrier for your packet service, you normally don't have to enter a RPOA entry. But there are exceptions. One classic example is if your preselected carrier is Accunet (AT&T) but you are trying to access your SprintMail account (on SprintNet's packet network). In this case you WILL have to supply the RPOA for SprintNet (3110). Funny... they just don't seem to want to send packets to one another...wonder why?! Related Topic: I have been trying for over a year to get AT&T EasyLink to SEND ME notification that I have new incoming email via D channel packet. Afterall, my ISDN X.25 address is always available for them to send a message...we just have to standardize on the correct format of such messages. They just have to send a simple one packet message indicating that I have new email. Simple enough. And it would better utilize resources...users would not have to continually poll for new email. Hope this is of some help. If you have any related questions, send me email. Brad Bennett MultiMedia Designs