It's deployed throughout Europe (i.e. wherever the CE mark applies) as well
as Australasia and many other places.
Note however that there are many bugs and omissions in network
implementations, and the RTTE directive for terminals no longer requires
conformance tests at layer 2 and 3. In particular, supplementary services
are not widely implemented.
Opinions are mine alone!
I am working on ISDN BRI protocol stack (User side) implementation
based on ETSI standard. I need clarification for the following. I
thought some one here can help me.
In the ETSI recommendation ETS 300 403-1 Nov. 1995 Page 25 Table 4-3
(Note 2) says that the following information elements may be repeated.
1) Cause 2) Channel identification 3) Progress Indicator 4) Network
specific facilities 5) Transit Network selection.
But how many times these information elements can be repeated and in
which of the call control messages these can be repeated is not
specified in the ETSI/ITU-T documents.
Can some one please clarify the following points ?
1)What is the maximum no. of times each of the above information
elements can be repeated ?
2)In which of the call control messages these information elements can
be repeated ?
Thanks in advance.
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Before you buy.
3. ETS 300 102