Valid Information Elements for I FLD and D FLD Action Tokens

Valid Information Elements for I FLD and D FLD Action Tokens

Valid Information Elements for I FLD and D FLD Action Tokens

Integrated Services Digital Network (ISDN) information elements (IEs) are made up of the following parts:

Header (or intermediate) information
Additional information, or data

ISDN message templates use I FLD and D FLD action tokens to specify which portion of a received IE to store in a digit field. This stored information can later be used to construct an IE for transmission over the D-channel. Refer to "System Administration Support," for the rules on IE construction.

Figure A-1 to Figure A-6 shows the structure of each IE that can be used in conjunction with the I FLD and D FLD action tokens. Each figure identifies which portion of the IE would be stored using the two tokens. The IE structures have been taken from the International Telecommunications Union guidelines documented in ITU-T Q.931.

Figure A-1 Called Party Number Information Element

Figure A-2 Called Party Subaddress Information Element

Figure A-3 Calling Party Number Information Element

Figure A-4 Calling Party Subaddress Information Element

Figure A-5 User-User Information Element

Figure A-6 Redirecting Number Information Element

Table of Contents

Valid Information Elements for I FLD and D FLD Action Tokens