AT&T DS1/DMi/ISDN-PRI manual Field Field 6 Field IE Name Codeset

7-72	ADMINISTRATION OPTIONS AND REQUIREMENTS — GENERIC 2
Field 3	Specifies a mapped from codeset number. Permitted encodes are 0 to 7. These
	numbers correspond to the respective codesets on a number-per-number basis.
	NOTE: Currently, codeset 1 through codeset 5 are reserved for future use.
	Thus, only encodes 6	and 7 are applicable for the codeset fields.
	If field 2 is translated (0)	for incoming then encode (7) is appropriate for field 3.
	If field 2 is translated (1)	for outgoing then encode (6) is appropriate for field 3.
Field 4	Identifies the IE code to be mapped from. Field encodes and their descriptions are:

–(Dash) is available but not recommended. If a dash were translated, all IEs would be mapped from one codeset to the other codeset on a one-to-one basis. Because some codeset 7 IEs are different from their numerical equivalent in codeset 6, it is generally NOT desirable to map on a one-to-one basis.

Table 7-8, Codeset Differences, identifies current IE differences between codeset 6 and codeset 7.

TABLE 7-8.Codeset Differences

Field 5

Field 6 Field 7

	IE Name		Codeset 6	Codeset 7
Traveling Class Mark			8	8
Logical	Link	Identification	26	4
Display			40	40
Packet	Layer	Parameters	62	2
Link Layer Parameters			64	1

number Any number within the range of (0 through 127).

Specifies a mapped-to codeset number. Permitted encodes are numbers within the range (0 through 7) These numbers correspond to the respective codesets on a number-per-number basis.

If field 2 is translated one for incoming, then encode seven is appropriate for field 5.

Identifies the IE code to be mapped to. Permitted encodes are the same as field 4.

Each code set map number may contain up to a maximum of 255 incoming and 255 outgoing mappings. This display-only field shows the number of mappings that remain (the number of unassigned mappings).

Procedure 354 Word 3: NPA-NXX Digits Assignment

This word and procedure are used to administer the ISDN numbering plan. Depending on the switch configuration, there may be more than one ISDN numbering plan. Contents of these fields make up a part of the calling number identification. This is used to transmit information such as the Station Identification Number (SID) and the connected number. The SID is transmitted in the calling number IE, which is a part of the setup message. Figure 7-33,Procedure 354 Word 3: NPA-NXX Digits Assignment (Generic 2), depicts this procedure.