4.16. [CHP] T-1 Protocol Variant Definitions

The CHP parameters define the line configurations that will be used by each network interface on the DM3 board. Within the [CHP] section of the CONFIG file, different possible T-1 protocol variants (protocol configuration settings) can be implemented and are defined using the Variant Define n command. The Variant Define n is later set for each network channel in the [TSC] defineBSet section of the CONFIG file.

For a detailed description of the Variant Define n command, see Section 1.3.10, [CHP] Section. For a detailed description of the defineBSet command, also see Section 1.3.11, [TSC] Section.

Although T-1 signals (E&M wink, loop start and ground start) are assigned as part of the T-1 protocol variant definitions, these signals are defined in the [CAS] section of the CONFIG file. For detailed information about specific T-1 signal definitions, see the following:

• Section 4.9, [CAS] Parameters for T-1 E&M Signals
• Section 4.10, [CAS] Parameters for T-1 Loop Start Signals
• Section 4.11, [CAS] Parameters for T-1 Ground Start Signals

Unless otherwise noted, T-1 Protocol Variant parameters apply to all signal types: E&M wink, loop start, and ground start. Parameters that only apply to a specific signal type, are prefaced with the applicable signal type. For example, the parameter EM_offhook only applies to E&M wink signaling and the parameter ProtocolType applies to E&M wink, loop start, and ground start signaling.

The T-1 Protocol Variant parameters include:

• ProtocolType (Protocol Type)
• Wink (Wink Flag)
• StartTimeout (Start Timeout)
• FarEndAnswer (Far End Answer)
• AnswerTimeout (Answer Timeout)
• ReconnectTimeout (Reconnect Timeout)
• DisconnectTimeout (Disconnect Timeout)
• InterCallDelay (Inter-call Delay)
• Dial (Outbound Dialing Flag)
• DialFormat (Dial Digits Format)
• ANI (ANI Flag)
• ANIFormat (ANI Digit Format)
• ANICount (ANI Digit Count)
• DNIS (DNIS Flag)
• DNISFormat (DNIS Digit Format)
• DNISCount (DNIS Digit Count)
• PreDigitTimeout (Pre-digit Timeout)
• InterDigitTimeout (Inter-digit Timeout)
• CallProgress (Call Progress Flag)
• CaRingingSet (Ringing Signal)
• CaBusySet (Busy Signal)
• CaSitSet (SIT Signal)
• CaFaxSet (Fax Signal)
• CaPvdId (Voice Detection Signal)
• CaPamdId (Answering Machine Signal)
• CaSignalTimeout (Signal Timeout)
• CaAnswerTimeout (Answer Timeout)
• CaPvdTimeout (Voice Detection Timeout)
• DialToneId (Dial Tone Signal)
• CaDialTimeout (Dial Timeout)
• BlindTransfer (Blind Transfer)
• BtDialToneId (DTD Signal)
• BtStartTimeout (DTD Timeout)
• BtAddressDef (Address Definition)
• BtOrigFormat (Originator Address Digits)
• BtDestFormat (Destination Address Digits)
• BtCancelDigitsFormat (Cancel Digits Format)
• BtCancelFlashCount (Cancel Flash Count)
• BtCancelInterFlashDuration (Cancel Inter-flash Duration)
• BtCancelDigits (Cancel Digits)
• BtDestSuffix (Destination Suffix Digits)
• BtDestPrefix (Destination Prefix Digits)
• BtOrigPrefix (Originator Prefix Digits)
• BtOrigSuffix (Originator Suffix Digits)
• PolarityDetection (Polarity Flag)
• EM_Offhook (E&M Off-hook Signal)
• EM_Onhook (E&M On-hook Signal)
• EM_FlashOnhook (E&M Flash On-hook Signal)
• EM_Wink (E&M Wink Signal)
• EM_Flash (E&M Flash Signal)
• LS_PBX_Open (Loop Start PBX Open)
• LS_PBX_FlashOpen (Loop Start PBX Flash Open Signal)
• LS_PBX_Close (Loop Start PBX Close Signal)
• LS_PBX_Flash (Loop Start PBX Flash Signal)
• LS_Net_Answer (Loop Start Net Answer Signal)
• LS_Net_Drop (Loop Start Net Drop Signal)
• LS_Net_FlashDrop (Loop Start Net Flash Drop Signal)
• LS_Net_Abandon (Loop Start Net Abandon)
• LS_Net_RingOn (Loop Start Net Ring On Signal)
• LS_Net_RingOff (Loop Start Net Ring Off)
• GS_PBX_Ground (Ground Start PBX Ground Signal)
• GS_PBX_Answer (Ground Start PBX Answer Signal)
• GS_PBX_Release (Ground Start PBX Release Signal)
• GS_PBX_Drop (Ground Start PBX Drop Signal)
• GS_PBX_FlashDrop (Ground Start PBX Flash Drop Signal)
• GS_PBX_Flash (Ground Start PBX Flash Signal)
• GS_Net_Ground (Ground Start Net Ground Signal)
• GS_Net_Drop (Ground Start Net Drop Signal)
• GS_Net_FlashDrop (Ground Start Flash Drop Signal)
• GS_Net_RingOn (Ground Start Net Ring On Signal)
• GS_Net_RingOff (Ground Start Net Ring Off Signal)

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