- #36
Anttech
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It's not the same thing. ISDN can be added (adding the out of band signaling), ISDN - Integrated Services Digital Network DS - Digital Service - a hierarchy of digital signal speeds for classification of lines and trunks. A T1 (DS1) does not come with ISDN on it, it has to be added (if needed) and a client has to have special equipment to use it.
Actually its the same when you look at the protocol especially in reference to the OSI layers which is what I was referring to.. ISDN and T1 use the same Data and physical layered protocols...
"Business grade" DSL is substandard to T1, T3, etc... The mean time to repair for DS1 is 4 hours if dispatch is needed, much faster without dispatch.
Considering both use the same (more or less) local loop I don't understand what you mean. If an ISP says it will fix dsl in 4 hours it can do it.. providing they own the wire.
GSM is wireless.
not wireless as in IP tho! Different protocol, and what I was referring to is that GSM technology is moving to IP.. which is NEW!
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