Date: Sat, 21 Jun 1997 15:19:05 -0400 (EDT) From: "John T. Farmer" <jfarmer@sabre.goldsword.com> To: blaz@gold.amis.net, gary@tbe.net Cc: freebsd-isp@FreeBSD.ORG, jfarmer@goldsword.com, tomthai@future.net Subject: Re: ISDN Message-ID: <199706211919.PAA14068@sabre.goldsword.com>
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On Sat, 21 Jun 1997 10:17:05 -0400 (EDT) "Gary D. Margiotta" said: >A good number of TA's will have dual ports on them to allow you to use two >64k channels in one unit, and also to allow bonding of the two channels to >acheive the 128k speed. > >I'm not sure if you know this or not, but the PM3's are still using 33.6 >cards due to the fact that Lucent/Rockwell still have not come out with >good 56k code for their k56Flex modems. The Livingston people don't have >a clue as to when they will get it, and all the customers who bought PM3's >with the thought that they would have the 56k by now are in an uproar and >very dissatisfied...I am on the mailing list for them too. I was going to >go the PM3 route myself, but since all that is going on, I am going to USR >x2 first because they at least have something that works. The USR Total >control unit, however doesn't support ISDN though (AFAIK), so you would >have to get an I-Modem rack, which from what I've heard aren't bad either. > Yeah, we're looking at doing the same type of thing. I looked into getting an Ascend box, but the cheapest path I could inch into it was with the Max 1800 (to support both ISDN and k56flex), and at +$8k won't fit in our current capital budget (very tight :^<). In our case, any route we take will be a pain since all our analog lines are just that, individual pots circuits (best route performance/cost when we put them in...). The headache & cost of installing PRI's just ain't goin' to happen soon. But since we found out that some/all of our analog lines are off a SLIC-96 rack & it's speed limiting our users connections, So we're installing BRI's in hunt groups & hanging USR I-couriers on our server ports. They'll handle 64/128k ISDN, x2, and 33.6. Granted, there'll be times where 1 BRI will be tied up handling 1 64k ISDN or 1 x2 call, but it beats nothing. Besides, we're "weaving" some 33.6 analogs to the POTS port on the I-couriers. We'll tie them at the end of our current analog group for overflow. Not the cleanest, most elegant solution, but it'll work now & buy us some time until the x2 / k56flex wars settle out... John ------------------------------------------------------------------------- John T. Farmer Proprietor, GoldSword Systems jfarmer@goldsword.com Public Internet Access in East Tennessee dial-in (423)470-9953 for info, e-mail to info@goldsword.com Network Design, Internet Services & Servers, Consulting
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