Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!lll-lcc!ptsfa!amdahl!amdcad!phil From: phil@amdcad.UUCP (Phil Ngai) Newsgroups: comp.sys.misc Subject: Re: Pending FCC ruling threat to modem users Message-ID: <14178@amdcad.UUCP> Date: Tue, 23-Dec-86 22:41:31 EST Article-I.D.: amdcad.14178 Posted: Tue Dec 23 22:41:31 1986 Date-Received: Wed, 24-Dec-86 05:39:24 EST References: <1575@brl-adm.ARPA> <126@dvm.UUCP> <4334@mit-eddie.MIT.EDU> <886@epiwrl.UUCP> <4815@amdahl.UUCP> Reply-To: phil@amdcad.UUCP (Phil Ngai) Organization: Advanced Micro Devices, Sunnyvale, California Lines: 31 Keywords: TASI In article <4815@amdahl.UUCP> sjl@amdahl.UUCP (Steve Langdon) writes: > The standard acronym associated with >this technique is TASI (Time Assigned Speech Interpolation?). It was >originally developed for use on high cost routes such as trans-Atlantic >cables (not satellites). Given the cost of the equipment involved use >is still restricted to this type of application. Steve, would you care to comment on whether the availability of TAT-8 (a fiber optic trans-Atlantic cable) will affect the use of TASI? Will the new cable reduce the cost of bandwidth enough to make the use of TASI equipment uneconomical? I smell a "data calls cost the phone company more" debate here. All the situations I've seen involved Regional Bell Operating Companies trying to eliminate unlimited local calls. For local calls, particularly at night, which is when most users are home and on their modem, there really is no additional cost to the RBOC. All that is used is their local loop, which exists and is economically non-sharable, and a piece of the switch, which has to be designed for daytime peaks anyway. I don't think there are any long distance carriers who care, at least, that I have heard of. And that is where things like echo suppression and TASI come into play. -- If you had everything, where would you put it? Phil Ngai +1 408 749 5720 UUCP: {ucbvax,decwrl,hplabs,allegra}!amdcad!phil ARPA: amdcad!phil@decwrl.dec.com