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IdleCode

Syntax

IdleCode = MU-LAW | A-LAW | voicecode[,signalcode]

Description

Specifies the bit patterns transmitted by an idle DSP, or to an unconnected line interface. Note: On AG-24 boards, this code applies to all timeslots specified in MVIPslot statements for the current board(s), except for those with idle codes specified in the MVIPslot statements.
In general, a DSP is considered to be idle when no application is using it.
If MU-LAW or A-LAW is specified, then the idle code for all configured timeslots in voice streams is the appropriate voice silence pattern. The idle code for all timeslots configured in signal streams is 0.
If both voicecode and signalcode are specified, they apply to even and odd streams respectively. If only voicecode is given, then it is the idle code for all streams.
The signalcode specifies the A, B, C, and D bits sent to an idle timeslot, according to the following bitmasks: Signal bit Hex mask Binary mask A 0x08 00001000 B 0x04 00000100 C 0x02 00000010 D 0x01 00000001
For example, to assert only the A and D bits on idle signaling timeslots, signalcode should be set to 0x09.
The IdleCode statement mandatory for configurations that use CAS protocols. If no idle code is specified for a board, 0x09 (ABCD=0x9) is the default for E1 trunks, MU-LAW is the default for T1 trunks.
Use A-LAW for E1 configurations that use CAS protocols, except in the following cases: IdleCode Setting Application 1101 Pulsed E and M (Indonesia), MFS, R1.5 (outbound) 1011 MFC-R2 (China and Thailand), Pulsed EAM (Brazil) 0101 EuroCAS (Italy), R1.5 (inbound)

Signal bit	Hex mask	Binary mask
A	0x08	00001000
B	0x04	00000100
C	0x02	00000010
D	0x01	00000001

IdleCode Setting	Application
1101	Pulsed E and M (Indonesia), MFS, R1.5 (outbound)
1011	MFC-R2 (China and Thailand), Pulsed EAM (Brazil)
0101	EuroCAS (Italy), R1.5 (inbound)

Example

IdleCode = A-LAW IdleCode = 0x5B,0xB #A-law voice, R2 signal (China)

IdleCode

Syntax

Description

Example

See Also