Bind request

Direction

MTP 3 -> MTP 2

Description

Establishes the sender as the user of an SS7 data link. Bind request is the first message sent from the layer 3 application to MTP 2 and is sent once for each link on a TX board that the application uses.

The following table lists the message parameters:

Type

Field

Description

U8

Message Type

0x04

S16

Service Provider ID

MTP 2 reference number for the link on the TX board. Valid values are 0 through 15.

S16

Service User ID

Application reference number for this link (typically a link number is global to all links known by layer 3). MTP 2 passes this number in all messages to the application associated with this link.

U8

Source Entity ID

Application entity ID.

U8

Source Instance ID

Application instance ID.