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T1 Component (0x0003)

Configuration Bytes

The table below shows the PPL Configuration Byte values for the T1 PPL component.

Table 2-1 Configuration Bytes for T1 Component

Byte | Description | Values
--- | --- | ---
101 | Incoming Start Dial Type | 0x01 Wink Start 0x03 Immediate 0x04 Dial Tone Default values vary by trunk type; see Default T1 Configuration Bytes, by trunk type..
102 | Outgoing Start Dial Type | 0x01 Wink Start * 0x03 Fixed Pause 0x04 Dial Tone Default values vary by trunk type; see Default T1 Configuration Bytes, by trunk type..
Transmit Signaling Type
111 | Onhook Transmit Signal | Default values vary by trunk type; see Default T1 Configuration Bytes, by trunk type..
112 | Primary Outseize Transmit Signal
113 | Secondary Outseize
114 | Inseize ACK Transmit Signal
115 | Answer Transmit Signal
116 | Post Outseize ACK
130 | Local End Release Host Notify | 0x00 Disable 0x01 Enable
131 | Glare Control Flag | 0x00 Give Up Control 0x01 Continue Outseize
132 | Receive Answer Line Signaling | Default values vary by trunk type; see Default T1 Configuration Bytes, by trunk type..

Important! The default byte values correlate to AB bits for signaling. The AB bits are two discrete binary values, but the EXS API uses a hexadecimal representation. For received line signaling, only AB bits are validated. You must use custom PPLs to comply with T1.403-1995/ANSI T1.403.02-1999 for received line signaling. To change default Out of Service signaling, use the PPL Transmit Configure message. Changes to configuration bytes will change transmitted signaling only when In Service.

Example.

AB bits | Hex
--- | ---
00 | 0x00
01 | 0x01
10 | 0x02
11 | 0x03

Table 2-2 Default T1 Configuration Bytes, by trunk type.

Config Byte No. | E & M | FXO/LS | FXO/GS | FXS/LS | FXS/GS
--- | --- | --- | --- | --- | ---
101 | 0x01 | 0x00 | 0x00 | 0x04 | 0x04
102 | 0x01 | 0x04 | 0x04 | 0x00 | 0x03
111 | 0x00 | 0x01 | 0x01 | 0x01 | 0x03
112 | 0x03 | 0x03 | 0x00 | 0x00 | 0x01
113 | 0x03 | 0x03 | 0x00 | 0x00 | 0x00
114 | 0x03 | 0x03 | 0x03 | 0x01 | 0x01
115 | 0x03 | 0x03 | 0x03 | 0x01 | 0x01
116 | 0x03 | 0x03 | 0x03 | 0x01 | 0x01
132 | 0x03 | 0x03 | 0x03 | 0x01 | 0x01

See Programmable Protocol Language.
Digital communications link - voice, data, and video at a 1.544 Mbps rate (24 64 Kbps channels)
Momentary interruption in a single frequency tone indicating the distant switch is ready to receive the digits just dialed.
Outgoing call setup during real-time call processing on a specific channel.
Positive acknowledgment to a message
A computer, attached to the Excel platform through an RS-232 or Ethernet link, from which you run the telecommunications application that controls the Excel platform.
Message delimiter (SS7 bit pattern - 01111110)
American National Standards Institute. ANSI administers and coordinates the U.S. voluntary standardization and conformity assessment system for the
telecommunications industry. More details on these standards may be
viewed at www.ansi.org.
See Loop Start.