This document includes a description of the NetTSP resource (Net
Telephony Service Provider) and the NetTSC (Net Telphony Services
Component) and the H.323 component. The guide purports to tell you
how to build an internet telephony application using the DM3 IPLink
platform. However, Figure 1 in the IPT User's Guide certainly implies
that you must have on-board NIC in order to use NetTSP/TSC. And we
do not have onboard NIC. But then Figure 4 implies that we can use
the NetTSP component even without an on-board NIC. However, further
reading in the manual seems to say that NetTSC handles TDM data only.
Can we also use any of this interface to handle our PCM data? This is
an area for further research. In any casE, NetTSC handles inbound/outbound
internet calls, and that will be needed for gateway applications.
What features do our IPLink boards have? Well, it does have 12 processors
(6 on each daughtercard).
The DM3 card (the IPLink card) does not have any on-board NIC.
The card manages 4 analog phone lines via the CT Bus cable connecting
it to the D/41EPCI card. We still are using the SCBus protocol,
however (it is compatible with the CT Bus). The IPTGate demo is
(probably) based on this guide.
(This document has also been called dm3guide.pdf)