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CPA Classes

The parameters associated with a CPA class are defined in CPA Pattern Parameter definitions. To modify a class or to add a new class, use the CPA Class Configure message. The CSP supports up to 15 classes. A class can contain up to 15 pattern members, and 30 patterns are allowed for each CSP. Class elements are given in CPA Classes.

Table 8-15 CPA Classes

Class | Standard N.A. 0x00 | Dial Tone 0x01 | CPC Det. 0x02 | Energy Det. 0x03
--- | --- | --- | --- | ---
Mode | 0x01 (Adv. Ans. Det.) |  |  | Energy Detection
Tone Burst Answer Threshold | 4/250 ms |  |  | 4/500 ms
Start Delay | 0x00 | 0x00 | 0x00 | 0x00
Continuous Silence Timeout (ms) | 25,000 | 25,000 | 0xFFFF | 25,000
Confirmation (ms) | 13,000 | 25,000 | 0xFFFF | 13,000
Confirmation/No Report (ms) | 22,000 | 15,000 | 0xFFFF | 22,000
Minimum Frequency Glitch Time (ms) | 40 | 20 | 20 | 20
Minimum Silence Glitch Time (ms) | 60 | 20 | 20 | 60
Maximum On Timer (ms) | 2,800 | 25,000 | 0xFFFF | 2,800
Maximum Off Timer (ms) | 5,000 | 25,000 | 0xFFFF | 5,000
Mode Specific Value 1 | 0x0000 | 0x0000 | 0x0000 | 0x0005
Mode Specific Value 2 | 0x0000 | 0x0000 | 0x0000 | 0x0002
Patterns in Class | 0x01 Ringback 0x02 Double Ringback 0x03 Busy 0x04 Reorder 0x05 PBX Intercept 0x06 SIT Intercept 0x07 Vacant Code 0x08 Reorder-LEC 0x09 No Circuit LEC 0x0A Reorder Carrier 0x0B No Circuit Carrier 0x0C PBX Dial Tone 0x0D Standard Dial Tone 0x13 Fax 0x14 2100Hz | 0x0C PBX Dial Tone 0x0D Standard Dial Tone | 0x0E CPC Detection | 0x01 Ringback 0x02 Double Ringback 0x03 Busy 0x04 Reorder

Table 8-16 2100Hz

2100Hz |
--- | ---
Pattern ID | 0x14
Tone Group ID | 0x00
Configuration Bits | 0x00
CPA Result on Pattern Loss | 0x14
Interval Cycles to Match | 1
Interval Cycles to Report | 1
Interval Descriptor Count | 1
Tone Interval 0: Tone ID | 0x0E
Reserved | 0x00
Minimum Filters (ms) | 640
Maximum Filters (ms) | 850

See Private Branch Exchange.