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3.2.11 STATUS ENQUIRY

The STATUS ENQUIRY message is sent by the user or the network at any time to solicit a STATUS message from the peer layer 3 entity. Sending a STATUS message in response to a STATUS ENQUIRY message is mandatory. See Table 3-33.

Table 3-33/Q.931

STATUS ENQUIRY message content

Message type: STATUS ENQUIRY
Significance: local
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

Display

4.5

n ® u

O (Note 1)

(Note 2)

NOTES

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

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