Channel Release Request 0x0037

SwitchKit Name

ChannelReleaseRequest

Type

EXS API and SwitchKit API message

Description

The conditions in which the Excel platform uses this message depends on the protocol you are using.

SS7

An SS7 channel reports this message to the host if both of the following conditions exist:

The SS7 channel is connected to a channel that is released

The release modes for the channels call for the SS7 channel to be released

This lets the host insert parameters for the outgoing ISUP REL using the Release Channel With Data message. If no data is to be inserted, the host may use the Release Channel message.

ISDN

The Excel platform sends this message to the host upon a network-initiated ISDN Disconnect message if the ISUP mode configuration is set to allow release upon a disconnect. The host responds with either a Release Channel message or a Release Channel With Data message to send information to the ISDN with the release.

Sent by

Excel platform

SwitchKit Code

C Structure

typedef struct {

unsigned short Span;

UBYTE Channel;

UBYTE ReleaseDataType;

UBYTE Data[222];

} XL_ChannelReleaseRequest;

C++ Class

class XLC_ChannelReleaseRequest : public XLC_OneChannelMessage {

public:

unsigned short getSpan() const;

void setSpan(unsigned short x);

UBYTE getChannel() const;

void setChannel(UBYTE x);

UBYTE getReleaseDataType() const;

void setReleaseDataType(UBYTE x);

const UBYTE *getData() const;

UBYTE *getData();

void setData(UBYTE *x);

};

EXS API Hex Format

MESSAGE (White)

RESPONSE (Gray)

Byte

Field Description

Byte

Field Description

0

Frame (0xFE)

0

Frame (0xFE)

1, 2

Length (0x00NN)

1, 2

Length (0x0005)

3, 4

Message Type (0x0037)

3, 4

Message Type (0x0037)

5

Reserved (0x00)

5

Reserved (0x00)

6

Sequence Number

6

Same Sequence Number

7

Logical Node ID

7

Logical Node ID

:

AIB

0x00 - Individual AEs

8

Checksum

Number of AEs to follow

AEs

0x0D Channel

:

Release Data Type

0x00 No Data

0x03 ISDN ICB

0x04 SS7 ICB

:

Data ICBs
The data format depends on the Release Data Type.

0x10 ISDN Formatted IEs

0x12 SS7 Parameters

0x25 ISDN Segmented Message

 

Refer to Interworking TLVs if you have enabled interworking from the VoIP Protocol Configure 0x00EE message.

:

Checksum