User guide

BROOKTROUT CONFIGURATION FILES
69
Configuration
Parameters for E1 ISDN
Ports
transfer_variant
Specifies the transfer method that the network (refer to the vendor specifications for your
switch) runs for call transfers or disables call transfer. Valid values are:
NONE = Disables call transfer
ETSI_EXP_LINK = Specifies an ETSI transfer with explicit linkage
NTT = Specifies a JATE active redirecting transfer
Default value: ETSI_EXP_LINK
wait_for_conn_ack
Specifies a Boolean value that determines whether the system waits for the network to
acknowledge a connect request before notifying the application that a call has been
answered. Set the parameter as follows:
FALSE = Specifies that the system does not wait for the network to acknowledge a
connect request before advancing an incoming call to the connected state.
TRUE = Requests the system to wait for the network to acknowledge a connect
request before advancing an incoming call to the connected state.
Default value: FALSE
Configuration
Parameters for E1 R2
CAS Ports
crc
Specifies a Boolean value that indicates whether the port has cyclical redundancy
checking (CRC) enabled.
DISABLED= Indicates that the port has disabled CRC
ENABLED = Indicates that the port has CRC enabled
Default value: ENABLED
default_caller_id
Specifies a string of up to 15 characters that provides the caller ID to use when placing
outbound calls. If the user application provides a caller ID when placing a call, the
system ignores this field.
Unit: character string
Range: 1 - 15 (_ECC_MAX_ANI_LENGTH)
Default value: Blank
line_coding
Specifies a value defining the type of line encoding to use for the port. Valid values are:
AMI = Selects Alternate Mark Inversion (AMI)
HDB3 = Selects High Density Bipolar Order 3 (HDB3)
Default value: HDB3
line_impedance
Specifies a value that defines the line impedance the port uses. Valid values are:
75 = Specifies that the port uses an impedance value of 75 ohms
120 = Specifies that the port uses an impedance value of 120 ohms