BP> yep, my point is that protokol different ports is not needed to BP> support multi protocol streams, it will even work on modems, or have BP> users today never seen a modem ?
With modems there was no choice to suport multiple protocols like FTS-1, FTS-6 and EMSI over the same connection. With modem over POTS, the physical layer only supports ONE connection at the time. With IP this is different. The physical channel supports many connections at the same time. So while it may be theoretically possible to make software that supports more than one protocol on the same port, and I won't even rule out that some sofwtare actually does, I see no added value to such a complication. There is no shortage of ports, so why the complication of sharing ports? It makes it more difficult for others to connect.
