You are here: CSP API Reference > 1 EXS & SwitchKit API Messages > Release Channel 0x0008
SwitchKit Name
Type
EXS API and SwitchKit API message
Description
Use this message to initiate the release of a single channel or a connected pair of channels. The host receives a Channel Released message when the distant-end releases.
To release only one channel, enter the channel in both the Logical Span ID and Channel fields. The other connected channel is parked.
Sent by
SwitchKit Code
C Structure
typedef struct {
unsigned short SpanA;
UBYTE ChannelA;
unsigned short SpanB;
UBYTE ChannelB;
} XL_ReleaseChannel;
C++ Class
class XLC_ReleaseChannel : public XLC_OutboundMessage {
public:
unsigned short getSpanA() const;
void setSpanA(unsigned short x);
UBYTE getChannelA() const;
void setChannelA(UBYTE x);
unsigned short getSpanB() const;
void setSpanB(unsigned short x);
UBYTE getChannelB() const;
void setChannelB(UBYTE x);
};
EXS API Hex Format
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MESSAGE (White) |
RESPONSE (Gray) |
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Byte |
Field Description |
Byte |
Field Description |
|
0 |
Frame (0xFE) |
0 |
Frame (0xFE) |
|
1, 2 |
Length (0x00NN) |
1, 2 |
Length (0x0007) |
|
3, 4 |
Message Type (0x0008) |
3, 4 |
Message Type (0x0008) |
|
5 |
Reserved (0x00) |
5 |
Reserved (0x00) |
|
6 |
Sequence Number |
6 |
Same Sequence Number |
|
7 |
Logical Node ID |
7 |
Logical Node ID |
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8 : |
Address Method
|
8, 9 |
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Number of AEs to follow |
10, 11 |
State (MSB, LSB) If the preceding Status field is a positive acknowledgement, this field does not apply. |
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|
AEs
or
Specify either Channel A or Channel B whichever channel did not initiate the release. You must specify the channel twice. |
12 |
Checksum |
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|
: |
Checksum |
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Response Status
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Call State |
Excel platform Call Control CH Values |
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Out-of-Service |
0x00 Out-of-Service |
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Idle |
0x03 In Service Idle |
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Connect Wait |
0x04 Incoming Call, Wait for L5 |
|
Book Wait |
0x06 Wait For CSA in Incoming Call Wait for Host State |
|
0x01 Incoming Call |
|
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Answer Wait 2 |
0x0E Incoming Call Alerted |
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Connect |
0x07 Answered |
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0x02 Wait For CSA in Incoming Call State |
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|
0x0C Wait for CSA in Incoming Alerted State |
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0x0D Wait for CSA in Incoming in Answered State |
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|
Clear Wait |
0x09 L3 Clear Wait |
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0x0F L3 Clear Wait |
|
|
Busied Out |
0x0A Busied out |
|
0x10 Wait for CSA in Outgoing Cut-thru |
|
|
Release With Data Wait |
0x15 L5 Release Wait |
|
Outseize Wait |
0x05 Outgoing Call, L3 Outseize Wait |
|
Parked |
0x13 Outgoing Call Alerted |
|
0x11 Wait for CSA in Outgoing Alerted State |
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|
Outseized |
0x0B Outgoing Call Cut-thru |
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0x12 L4 Clear ACK Wait, L3 Clear Received |
|
|
Release Wait |
0x08 L4 Clear ACK Wait, L3 Disconnect Received |
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0x14 L4 Clear ACK Wait, L5 Clear Received |
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0x16 Incoming Call, L4 Clear ACK Wait (Park Processing) |
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0x17 Incoming Call Alerted, L4 Clear ACK Wait (Park Processing) |
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0x18 Answered, L4 Clear ACK Wait (Park Processing) |
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0x19 Outgoing Alerted, L4 Clear ACK Wait (Park Processing) |
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Call State |
Excel platform Call Control CH Values |
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0x1A Outgoing Cut-thru, L4 Clear ACK Wait (Park Processing) |
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0x1B Wait for CSA for Internal Routing |