I'm forwarding this to the SG 16 list copy the Megaco list because I think the MTP address was firmed up at Red Bank.  Can anyone account for the failure to accommodate longer MTP addresses?  Was it simply because the intention was to use Annex I transport within an ITU environment only?

-----Original Message-----
From:   dacollins@notes.primeco.com [SMTP:dacollins@notes.primeco.com]
Sent:   Friday, May 26, 2000 1:03 PM
To:     Taylor, Tom-PT [NORSE:B901:EXCH]
Subject:        MEGACO errata





Hi Tom,
Having had a look at the latest version of the MEGACO spec, I noticed something
odd. The mId may be an MTP address. However, the MTP address is defined in both
the ABNF and ASN.1 specifications as being 2 octets in length. The ASN.1
description provides a comment that the point code (PC) is 14 bits and the
network indicator (NI) is two bits.
This is only correct for the ITU version of SS7.
In several countries, different versions of SS7 are used and different
addressing schemes are used. In many countries, including the US, Canada and
China, the PC is 24 bits long, with the NI still at two bits, for a total of 26
bits. Therefore, to use an MTP address for the mId in those countries, the
definition of the mId needs to change.

I hope this helps in finalizing the spec.

Daniel Collins