Ethereal-dev: Re: [Ethereal-dev] ANSI SCCP:

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From: Jeff Morriss <jeff.morriss@xxxxxxxxxxx>
Date: Thu, 16 Sep 2004 17:30:30 -0400

shashidhar bhandare wrote:

Hi,
I have a problem in the SCCP for ANSI. if the National/International indicator is set to INTERNATIONAL ( = 1 ) in the address elements, the code uses the if section of ITU. I think it should be looking at ANSI section and ignore the National/International indicator to decode properly. 

Pls comment.
According to T1.112.3 section 3.4.1, if bit 8 of the AI is set to 0 then the address is international and "both the address indicator and the address are coded according to international specifications."
If it is set to 1 "both the address indicator and the address are coded according to national specifications."
The SCCP dissector will decode the messages this way--though I have to admit I have never seen (intentional) messages on an ANSI network with the national bit set to 0 (international).