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3.1.7 NOTIFY

This message is sent by the user or the network to indicate information pertaining to a call, such as user suspended. See Table 3-8.

Table 3-8/Q.931

NOTIFY message content

Message type: NOTIFY
Significance: access
Direction: both

Information element

Reference (subclause)

Direction

Type

Length

Protocol discriminator

4.2

Both

M

1

Call reference

4.3

Both

M

2-*

Message type

4.4

Both

M

1

Bearer capability

4.5

n ® u

O (Note 1)

2-12

Notification indicator

4.5

Both

M

3

Display

4.5

n ® u

O (Note 2)

(Note 3)

NOTES

1. Included by the network to indicate a change of the bearer capability (see Annex L).

2. Included if the network provides information that can be presented to the user.

3. The minimum length is 2 octets; the maximum length is network dependent and is either 34 or 82 octets.