Date: Thu, 23 Jan 1997 19:47:22 -0600 From: Allen Hyer <allenh@wtrt.net> To: Brett_Glass@infoworld.com, gurney_j@resnet.uoregon.edu, lenc@earth.infinetconsulting.com Cc: spork@super-g.com, batie@agora.rdrop.com, drussell@internode.net, freebsd-isp@FreeBSD.org, freebsd-hardware@FreeBSD.org Subject: Re: 56K vs X2? Message-ID: <3.0.1.32.19970123194722.006ad8cc@wtrt.net> In-Reply-To: <9700238540.AA854063640@ccgate.infoworld.com>
next in thread | previous in thread | raw e-mail | index | archive | help
At 04:38 PM 1/23/97 PST, Brett_Glass@infoworld.com wrote: >> since the originating data was straight PCM codes, the digital to analog >> conversion should theoretically not change the data. > >Even if you send straight PCM codes, you have no control over bit robbing >on switched circuits. (You can get DEDICATED clear channel T1, but to my >knowledge, you can't rely on clear channel through a phone switch.) I'm not an expert in telco technology, but if it makes any difference, on the USR total control system, you must use "trunk-side" T1's. Your other option is to use ISDN-PRI. Allen Hyer System Administrator West Texas Rural Telephone
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3.0.1.32.19970123194722.006ad8cc>