AW: Implementation of H450.1 and H450-2

Klaghofer Karl ICN EN HC SE 81 Karl.Klaghofer at ICN.SIEMENS.DE
Tue Dec 12 08:34:53 EST 2000


Mikael,

Call Forwarding is defined within Rec. H.450.3 (H.450.2 is about Call
Transfer).
OSS ASN.1 compiler as an example supports all ASN.1 used in the H.450 series
(incl. ROS object classes).
There are several manufacturers implementing H.450.x.
Remark: Such types of questions should actually be discussed at the
h323implementers list (h323implementors at imtc.org).

Regards,
Karl Klaghofer
Siemens AG
E-Mail: karl.klaghofer at icn.siemens.de


-----Ursprüngliche Nachricht-----
Von: Mikael Grehn [mailto:mikael at ENVILOGG.SE]
Gesendet am: Dienstag, 12. Dezember 2000 13:54
An: ITU-SG16 at mailbag.cps.intel.com
Betreff: Implementation of H450.1 and H450-2

Hi!

[I first would like to appologize if this is the wrong forum to direct
our ITU-standard question in, please inform me if it is inproper]

The question concern implementation of Call Forwarding, i.e. ITU-std
H450.1 and H450-2.

We are planning to implement Call Forwarding support into a
telephonysystem using IP-telephony based support(i.e. H323 and similar).
The standard for Call Forwarding is described/defined in H450.1 and
H450-2 (and others).

The problem is that we need to parse the ASN syntax into true
implementation files (.h/.c/.cpp) but  we have failed in finding a ASN
parser that supports the specific syntax in H450.1 and H450-2.

Is there a ASN parser that can "compile" the H450.1 and H450-2 (and
preferable higher H450:s) standard protocols?

Are there any "true" alternatives (beside using H450.2 and H450-2) when
implementing Call Forwarding?

Are there any other developers that has implemented Call Forwarding that
would like to share their experiences with us?

Thanks in advance!

Sincerely
Mikael Grehn
System Developer
Envilogg Datateknik AB
Sweden

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