Hi Treg
Can anyone help on a Hong Kong ISDN question?
I understand the regulatory framework and know that a single connection BRISDN
TE does not require mandatory network access approval. There is however a HK
Telecom standard (CR22) for voluntary approval tests.
When you actually come to offer an ISDN TE in HK you find that the PTO's can
provide any type of ISDN that is either: An ANSI variant, ETSI variant or
ITU-T Generic variant. In all cases, 3.1 kHz speech is u-Law coded.
The OFTA can provide (via www) standards for each case (except the ETSI / TBR3
which are obtainable from ETSI direct). It is OFTA policy to allow
multistandard end user interface provision.
So, faced with many possible ISDN TE types, does anyone know which is the most
widely adopted and supported type or, from a Sales viewpoint, do customers look
for a particular variant?
Thanks for any help given: Bill Ellingford Approvals Manager
Motion Media Technology
