UIT - Secteur de la normalisation des télécommunications
ITU - Telecommunication Standardization Sector
UIT - Sector de Normalización de las Telecomunicaciones

Study Period 1997-2000

  16	  

Geneva, 14-25 September 1998
	  E
Question(s):	11/16

SOURCE*:	JAPAN

TITLE:	Comments on the RecommendationH.450.1, H.450.2 and H.450.3

PURPOSE:	Proposal
___________________

1.	Introduction
In the Telecommunication Technology Committee (TTC) in Japan, they generate their standards based on the ITU-T recommendations considering national matter items and so on. Through their activity related to the ITU-T H.450.1,H.450.2 and H.450.3, a number of problems are found. This document summarises these  points, and propose to prepare Implementers’guide to provide a solutions or clarifications for these points.

2.	Comments on the current document of H.450.1, H.450.2 and H.450.3 
Following are the summary of the comments to H.450.1, H.450.2 and H.450.3 document. 

2.1 Comments on the H.450.1
1)	Editorial – 6.6, line 6
rejectUnrecognizedInvokePdu -> rejectAnyUnrecognizedInvokePdu
“rejectAnyUnrecognizedInvokePdu” is used in Table 3.
2) Editorial – 6.6, line 12
discardAnyUnrecognizedInvokePDU -> discardAnyUnrecognizedInvokePdu
“discardAnyUnrecognizedInvokePdu” is used in Table 3.

2.2 	Comments on the H.450.2
1)Editorial - 11.4.2, line 4 c)
“The CTSetup.request primitive is used to request call establishment from TRTSE.” 
-> “The CTSetup.request primitive is used to request call establishment to TRTSE”
2)Editorial - 11.4.2, line 5 d)
“The CTSetup.confirm primitive is used to indicate success of call establishment to TRTSE.” 
-> “The CTSetup.confirm primitive is used to indicate success of call establishment from TRTSE”
3)Editorial - 11.5.2, line 6 e)
“The CTIdentify.indication primitive is used to request a call identification.”
 -> “The CTIdentify.indication primitive is used to indicate a call identification.”
4)Editorial - 11.5.2, line 11,12 j)
“The CTComplete.request primitive may be used by GKs to request sending of call transfer information to the transferred-to user.”
 -> “The CTComplete.request primitive may be used by GKs to request sending of call transfer information to the transferred-to endpoint.”
5)Editorial - 11.5.2, line 13,14 k)
“The CTComplete.indication primitive is used to indicate call transfer information to the transferred-to endpoint.”
 -> “The CTComplete.indication primitive is used to indicate call transfer information to the transferred-to user.”
6)	Editorial -11.6.2, line 2
“CT-T1 - Timer CT-T1 shall operate at the TRGSE during state CT-Await-Identify-Response. Its purpose is to protect against the absence of response to the CTIdentify.request”
->“CT-T1 - Timer CT-T1 shall operate at the TRGSE during state CT-Await-Identify-Response. Its purpose is to protect against the absence of response to the CTIdentify.invoke”
7)	Editorial - FIGURE25/SDL
“T4” -> “CT-T4”
The type of symbol was mistake. Time-Out event is an internal event.

             ->

2.3 	Comments on the H.450.3
1) Editorial - FIGURE21,22,23,28/SDL
The type of symbol was mistake. Time-Out event is an internal event.

             ->

References

[1]	Draft  H.450.1 Recommendation , COM 16-42, September 1997.	
[2]	Draft  H.450.2 Recommendation , COM 16-43, September 1997.	
[2]	Draft  H.450.3 Recommendation , COM 16-44, September 1997.