This message is sent by the user to request the network to clear an end-to-end connection or is sent by the network to indicate that the end-to-end connection is cleared. See Table 3-6.
DISCONNECT message content
Message type: DISCONNECT |
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Information element |
Reference (subclause) |
Direction |
Type |
Length |
Protocol discriminator |
Both |
M |
1 |
|
Call reference |
Both |
M |
2-* |
|
Message type |
Both |
M |
1 |
|
Cause |
Both |
M |
4-32 |
|
Progress indicator |
(Note 1) |
O (Note 2) |
2-4 |
|
Display |
n ® u |
O (Note 3) |
(Note 4) |
|
Signal |
n ® u |
O (Note 5) |
2-3 |
|
NOTES 1. Included in the network-to-user direction if the network provides in-band tones. See Annex D for usage in the user-to-network direction. 2. Included by the network if in-band tones are provided. However, the user may include the progress indicator and provide in-band tones. See Annex D. In such cases the network will ignore this information element and will not convey the in-band tones. 3. Included if the network provides information that can be presented to the user. 4. The minimum length is 2 octets; the maximum length is network dependent and is either 34 or 82 octets. 5. Included if the network optionally provides additional information describing tones. |
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