This message is sent by the calling user to the network and by the network to the called user to initiate call establishment.
Information element | Direction | Type | Length | Note |
---|---|---|---|---|
Protocol discriminator | Both | M | 1 | |
Call reference | Both | M | 2-* | |
Message type | Both | M | 1 | |
Sending complete | Both | O | 1 | Included if the user or the network optionally indicates that all information necessary for call establishment is included in the SETUP message. |
Repeat indicator | Both | O | 1 | The Repeat indicator IE is included immediately before the first Bearer capability IE when the bearer capability negotiation procedure is used . |
Bearer capability | Both | M (Note 3) | 4-12 | May be repeated if the bearer capability negotiation procedure is used (see Annex L). For bearer capability negotiation, two Bearer capability IE may be included in descending order of priority, i.e., highest priority first. Although support multiple Bearer capability IE may not be supported on all networks, on networks that do support it, and through suitable subscription arrangements, two Bearer capability IE may be included (see 5.11). When they are not preceded by a Repeat indicator IE, they are included in ascending order of priority. |
Channel identification | Both | O (Note 4) | 2-* | |
Progress indicator | Both | O (Note 5) | 2-4 | |
Facility | O | Q-SIG | ||
Network specific facilities | Both | O (Note 6) | 2-* | |
Display | n -> u | O (Note 7)(Note 8) | ||
Keypad facility | u -> n | O (Note 9) | 2-34 | |
Signal | n -> u | O (Note 10) | 2-3 | |
Calling party number | Both | O (Note 11) | 2-* | |
Calling party subaddress | Both | O (Note 12) | 2-23 | |
Called party number | Both | O (Note 13) | 2-* | |
Called party subaddress | Both | O (Note 14) | 2-23 | |
Transit network selection | u -> n | O (Note 15) | 2-* | |
Repeat indicator | Both | O (Note 16) | 1 | |
Low layer compatibility | Both | O (Note 17) | 2-18 | |
High layer compatibility | Both | O (Note 18) |
NOTES: