routers or a t1 cards can do that without a csu/dsu. a csu/dsu is really just something that the telco can use for trouble shooting and loopback testing. i think the fcc also requires it by law.
----- Original Message ----- From: "Angel Gabriel" <[EMAIL PROTECTED]> To: "* Users" <[EMAIL PROTECTED]> Sent: Saturday, September 20, 2003 4:16 AM Subject: Re: [Asterisk-Users] Identify call router? How? > On Fri, 2003-09-19 at 20:35, Rich Adamson wrote: > > > > > I have a machine in my office, it is labelled Cable and Wireless, and on > > > > > the back it says, SMarT-1 > > > > > I have searched the web, and no joy. It connects to a PC via a serial > > > > > cable, has anyone heard of such a device? > > > > > > > > Sounds like a CSU/DSU that C&W installed for some service. > > > > CSU = Customer Service Unit > > DSU = Data Service Unit > > > > Essentially, CSU/DSU's are high speed modems, converting logical bits sent > > from a device (eg, PC) into appropriate 56k or T1 modulation schemes that > > are based on telephony standards. > > > Thank you Rich, that makes perfect sense! > -- > ***** > Not everyone is touched by an Angel.... > .... Those that are, never forget the experience > ***** > > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
