Path: csiph.com!xmission!news.snarked.org!news.linkpendium.com!news.linkpendium.com!panix!dannyb From: danny burstein Newsgroups: comp.dcom.telecom.tech Subject: Re: video phone via landline Date: Sun, 29 Mar 2020 04:51:14 +0000 (UTC) Organization: PANIX Public Access Internet and UNIX, NYC Lines: 23 Message-ID: References: <6da72874-50b6-459b-aee8-dacd86125ef0@googlegroups.com> NNTP-Posting-Host: panix1.panix.com X-Trace: reader2.panix.com 1585457474 22416 166.84.1.1 (29 Mar 2020 04:51:14 GMT) X-Complaints-To: abuse@panix.com NNTP-Posting-Date: Sun, 29 Mar 2020 04:51:14 +0000 (UTC) User-Agent: nn/6.7.3 Xref: csiph.com comp.dcom.telecom.tech:365 In <6da72874-50b6-459b-aee8-dacd86125ef0@googlegroups.com> Jason Yan writes: >My question may sound weird but I could not find a clue online and I am not= > in telecom field. Hoping I can at least get some expert insight here. Than= >k you very much in advance! >Assume there is no internet at all (not even ADSL or DSL), and no cell phon= >e next work at all. Is it even possible to make two video phones that commu= >nicate purely through landline? There were, indeed, some of these available in 1995 or so. Slow scan (maybe once/sec?) low quality images. My boss had one on his desk and there were about a half dozen folk he could talk to and watch. -- _____________________________________________________ Knowledge may be power, but communications is the key dannyb@panix.com [to foil spammers, my address has been double rot-13 encoded]